Home / 39,373.95-54,337.19-21,470.12

Finding the Fourth Proportional to 39,373.95, 54,337.19 and 21,470.12

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Solution

The fourth proportional to 39,373.95, 54,337.19 and 21,470.12 is: 29,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,373.95 : 54,337.19 = 21,470.12 : x
  2. Step 2: Convert to fraction form
    39,373.95/54,337.19 = 21,470.12/x
  3. Step 3: Cross multiply
    39,373.95x = 54,337.19 × 21,470.12
  4. Step 4: Simplify right side
    39,373.95x = 1,166,625,989.76
  5. Step 5: Solve for x
    x = 1,166,625,989.76/39,373.95
  6. Step 6: Final answer
    x = 29,629.39

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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.