Home / 31,721.70-47,517.96-15,031.14

Finding the Fourth Proportional to 31,721.70, 47,517.96 and 15,031.14

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Solution

The fourth proportional to 31,721.70, 47,517.96 and 15,031.14 is: 22,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.70 : 47,517.96 = 15,031.14 : x
  2. Step 2: Convert to fraction form
    31,721.70/47,517.96 = 15,031.14/x
  3. Step 3: Cross multiply
    31,721.70x = 47,517.96 × 15,031.14
  4. Step 4: Simplify right side
    31,721.70x = 714,249,109.27
  5. Step 5: Solve for x
    x = 714,249,109.27/31,721.70
  6. Step 6: Final answer
    x = 22,516.10

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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.