Home / 39,689.73-54,757.76-22,681.58

Finding the Fourth Proportional to 39,689.73, 54,757.76 and 22,681.58

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Solution

The fourth proportional to 39,689.73, 54,757.76 and 22,681.58 is: 31,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,689.73 : 54,757.76 = 22,681.58 : x
  2. Step 2: Convert to fraction form
    39,689.73/54,757.76 = 22,681.58/x
  3. Step 3: Cross multiply
    39,689.73x = 54,757.76 × 22,681.58
  4. Step 4: Simplify right side
    39,689.73x = 1,241,992,126.86
  5. Step 5: Solve for x
    x = 1,241,992,126.86/39,689.73
  6. Step 6: Final answer
    x = 31,292.53

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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.