Home / 31,539.27-47,316.89-10,479.43

Finding the Fourth Proportional to 31,539.27, 47,316.89 and 10,479.43

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Solution

The fourth proportional to 31,539.27, 47,316.89 and 10,479.43 is: 15,721.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.27 : 47,316.89 = 10,479.43 : x
  2. Step 2: Convert to fraction form
    31,539.27/47,316.89 = 10,479.43/x
  3. Step 3: Cross multiply
    31,539.27x = 47,316.89 × 10,479.43
  4. Step 4: Simplify right side
    31,539.27x = 495,853,855.76
  5. Step 5: Solve for x
    x = 495,853,855.76/31,539.27
  6. Step 6: Final answer
    x = 15,721.79

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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.