Home / 39,292.74-54,224.30-21,387.69

Finding the Fourth Proportional to 39,292.74, 54,224.30 and 21,387.69

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Solution

The fourth proportional to 39,292.74, 54,224.30 and 21,387.69 is: 29,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,292.74 : 54,224.30 = 21,387.69 : x
  2. Step 2: Convert to fraction form
    39,292.74/54,224.30 = 21,387.69/x
  3. Step 3: Cross multiply
    39,292.74x = 54,224.30 × 21,387.69
  4. Step 4: Simplify right side
    39,292.74x = 1,159,732,572.34
  5. Step 5: Solve for x
    x = 1,159,732,572.34/39,292.74
  6. Step 6: Final answer
    x = 29,515.19

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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.