Home / 19,749.59-29,633.11-10,387.47

Finding the Fourth Proportional to 19,749.59, 29,633.11 and 10,387.47

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Solution

The fourth proportional to 19,749.59, 29,633.11 and 10,387.47 is: 15,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,749.59 : 29,633.11 = 10,387.47 : x
  2. Step 2: Convert to fraction form
    19,749.59/29,633.11 = 10,387.47/x
  3. Step 3: Cross multiply
    19,749.59x = 29,633.11 × 10,387.47
  4. Step 4: Simplify right side
    19,749.59x = 307,813,126.29
  5. Step 5: Solve for x
    x = 307,813,126.29/19,749.59
  6. Step 6: Final answer
    x = 15,585.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.