Home / 39,559.71-54,592.32-21,654.72

Finding the Fourth Proportional to 39,559.71, 54,592.32 and 21,654.72

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Solution

The fourth proportional to 39,559.71, 54,592.32 and 21,654.72 is: 29,883.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,559.71 : 54,592.32 = 21,654.72 : x
  2. Step 2: Convert to fraction form
    39,559.71/54,592.32 = 21,654.72/x
  3. Step 3: Cross multiply
    39,559.71x = 54,592.32 × 21,654.72
  4. Step 4: Simplify right side
    39,559.71x = 1,182,181,403.75
  5. Step 5: Solve for x
    x = 1,182,181,403.75/39,559.71
  6. Step 6: Final answer
    x = 29,883.47

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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.