Home / 39,695.61-54,780.57-21,792.25

Finding the Fourth Proportional to 39,695.61, 54,780.57 and 21,792.25

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Solution

The fourth proportional to 39,695.61, 54,780.57 and 21,792.25 is: 30,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,695.61 : 54,780.57 = 21,792.25 : x
  2. Step 2: Convert to fraction form
    39,695.61/54,780.57 = 21,792.25/x
  3. Step 3: Cross multiply
    39,695.61x = 54,780.57 × 21,792.25
  4. Step 4: Simplify right side
    39,695.61x = 1,193,791,876.58
  5. Step 5: Solve for x
    x = 1,193,791,876.58/39,695.61
  6. Step 6: Final answer
    x = 30,073.65

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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.