Home / 39,387.52-54,355.23-21,482.47

Finding the Fourth Proportional to 39,387.52, 54,355.23 and 21,482.47

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Solution

The fourth proportional to 39,387.52, 54,355.23 and 21,482.47 is: 29,646.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.52 : 54,355.23 = 21,482.47 : x
  2. Step 2: Convert to fraction form
    39,387.52/54,355.23 = 21,482.47/x
  3. Step 3: Cross multiply
    39,387.52x = 54,355.23 × 21,482.47
  4. Step 4: Simplify right side
    39,387.52x = 1,167,684,597.82
  5. Step 5: Solve for x
    x = 1,167,684,597.82/39,387.52
  6. Step 6: Final answer
    x = 29,646.06

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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.