Home / 39,610.62-54,659.61-21,702.74

Finding the Fourth Proportional to 39,610.62, 54,659.61 and 21,702.74

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Solution

The fourth proportional to 39,610.62, 54,659.61 and 21,702.74 is: 29,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,610.62 : 54,659.61 = 21,702.74 : x
  2. Step 2: Convert to fraction form
    39,610.62/54,659.61 = 21,702.74/x
  3. Step 3: Cross multiply
    39,610.62x = 54,659.61 × 21,702.74
  4. Step 4: Simplify right side
    39,610.62x = 1,186,263,031.03
  5. Step 5: Solve for x
    x = 1,186,263,031.03/39,610.62
  6. Step 6: Final answer
    x = 29,948.11

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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.