Home / 22,118.36-30,562.20-17,678.76

Finding the Fourth Proportional to 22,118.36, 30,562.20 and 17,678.76

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Solution

The fourth proportional to 22,118.36, 30,562.20 and 17,678.76 is: 24,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,118.36 : 30,562.20 = 17,678.76 : x
  2. Step 2: Convert to fraction form
    22,118.36/30,562.20 = 17,678.76/x
  3. Step 3: Cross multiply
    22,118.36x = 30,562.20 × 17,678.76
  4. Step 4: Simplify right side
    22,118.36x = 540,301,798.87
  5. Step 5: Solve for x
    x = 540,301,798.87/22,118.36
  6. Step 6: Final answer
    x = 24,427.75

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Half scale
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Double scale
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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.