Home / 39,259.18-54,178.56-21,355.14

Finding the Fourth Proportional to 39,259.18, 54,178.56 and 21,355.14

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Solution

The fourth proportional to 39,259.18, 54,178.56 and 21,355.14 is: 29,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,259.18 : 54,178.56 = 21,355.14 : x
  2. Step 2: Convert to fraction form
    39,259.18/54,178.56 = 21,355.14/x
  3. Step 3: Cross multiply
    39,259.18x = 54,178.56 × 21,355.14
  4. Step 4: Simplify right side
    39,259.18x = 1,156,990,627.02
  5. Step 5: Solve for x
    x = 1,156,990,627.02/39,259.18
  6. Step 6: Final answer
    x = 29,470.58

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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.