Home / 31,402.60-47,109.92-10,348.72

Finding the Fourth Proportional to 31,402.60, 47,109.92 and 10,348.72

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Solution

The fourth proportional to 31,402.60, 47,109.92 and 10,348.72 is: 15,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,402.60 : 47,109.92 = 10,348.72 : x
  2. Step 2: Convert to fraction form
    31,402.60/47,109.92 = 10,348.72/x
  3. Step 3: Cross multiply
    31,402.60x = 47,109.92 × 10,348.72
  4. Step 4: Simplify right side
    31,402.60x = 487,527,371.30
  5. Step 5: Solve for x
    x = 487,527,371.30/31,402.60
  6. Step 6: Final answer
    x = 15,525.06

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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.