Home / 30,421.71-41,966.24-19,250.19

Finding the Fourth Proportional to 30,421.71, 41,966.24 and 19,250.19

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Solution

The fourth proportional to 30,421.71, 41,966.24 and 19,250.19 is: 26,555.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.71 : 41,966.24 = 19,250.19 : x
  2. Step 2: Convert to fraction form
    30,421.71/41,966.24 = 19,250.19/x
  3. Step 3: Cross multiply
    30,421.71x = 41,966.24 × 19,250.19
  4. Step 4: Simplify right side
    30,421.71x = 807,857,997.33
  5. Step 5: Solve for x
    x = 807,857,997.33/30,421.71
  6. Step 6: Final answer
    x = 26,555.31

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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.