Home / 39,230.97-54,139.80-21,327.18

Finding the Fourth Proportional to 39,230.97, 54,139.80 and 21,327.18

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Solution

The fourth proportional to 39,230.97, 54,139.80 and 21,327.18 is: 29,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.97 : 54,139.80 = 21,327.18 : x
  2. Step 2: Convert to fraction form
    39,230.97/54,139.80 = 21,327.18/x
  3. Step 3: Cross multiply
    39,230.97x = 54,139.80 × 21,327.18
  4. Step 4: Simplify right side
    39,230.97x = 1,154,649,259.76
  5. Step 5: Solve for x
    x = 1,154,649,259.76/39,230.97
  6. Step 6: Final answer
    x = 29,432.09

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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.