Home / 31,507.38-47,256.21-13,974.12

Finding the Fourth Proportional to 31,507.38, 47,256.21 and 13,974.12

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Solution

The fourth proportional to 31,507.38, 47,256.21 and 13,974.12 is: 20,959.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.38 : 47,256.21 = 13,974.12 : x
  2. Step 2: Convert to fraction form
    31,507.38/47,256.21 = 13,974.12/x
  3. Step 3: Cross multiply
    31,507.38x = 47,256.21 × 13,974.12
  4. Step 4: Simplify right side
    31,507.38x = 660,363,949.29
  5. Step 5: Solve for x
    x = 660,363,949.29/31,507.38
  6. Step 6: Final answer
    x = 20,959.02

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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.