Home / 22,031.36-30,340.68-19,377.92

Finding the Fourth Proportional to 22,031.36, 30,340.68 and 19,377.92

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Solution

The fourth proportional to 22,031.36, 30,340.68 and 19,377.92 is: 26,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.36 : 30,340.68 = 19,377.92 : x
  2. Step 2: Convert to fraction form
    22,031.36/30,340.68 = 19,377.92/x
  3. Step 3: Cross multiply
    22,031.36x = 30,340.68 × 19,377.92
  4. Step 4: Simplify right side
    22,031.36x = 587,939,269.79
  5. Step 5: Solve for x
    x = 587,939,269.79/22,031.36
  6. Step 6: Final answer
    x = 26,686.47

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Half scale
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Double scale
Find fourth proportional to 22,032.36, 30,342.06 and 19,378.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.