Home / 39,253.12-54,169.56-21,348.32

Finding the Fourth Proportional to 39,253.12, 54,169.56 and 21,348.32

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Solution

The fourth proportional to 39,253.12, 54,169.56 and 21,348.32 is: 29,460.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,253.12 : 54,169.56 = 21,348.32 : x
  2. Step 2: Convert to fraction form
    39,253.12/54,169.56 = 21,348.32/x
  3. Step 3: Cross multiply
    39,253.12x = 54,169.56 × 21,348.32
  4. Step 4: Simplify right side
    39,253.12x = 1,156,429,101.14
  5. Step 5: Solve for x
    x = 1,156,429,101.14/39,253.12
  6. Step 6: Final answer
    x = 29,460.82

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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.