Home / 31,440.24-47,155.20-9,251.08

Finding the Fourth Proportional to 31,440.24, 47,155.20 and 9,251.08

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Solution

The fourth proportional to 31,440.24, 47,155.20 and 9,251.08 is: 13,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.24 : 47,155.20 = 9,251.08 : x
  2. Step 2: Convert to fraction form
    31,440.24/47,155.20 = 9,251.08/x
  3. Step 3: Cross multiply
    31,440.24x = 47,155.20 × 9,251.08
  4. Step 4: Simplify right side
    31,440.24x = 436,236,527.62
  5. Step 5: Solve for x
    x = 436,236,527.62/31,440.24
  6. Step 6: Final answer
    x = 13,875.10

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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.