Home / 31,470.18-47,213.47-11,748.90

Finding the Fourth Proportional to 31,470.18, 47,213.47 and 11,748.90

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Solution

The fourth proportional to 31,470.18, 47,213.47 and 11,748.90 is: 17,626.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.18 : 47,213.47 = 11,748.90 : x
  2. Step 2: Convert to fraction form
    31,470.18/47,213.47 = 11,748.90/x
  3. Step 3: Cross multiply
    31,470.18x = 47,213.47 × 11,748.90
  4. Step 4: Simplify right side
    31,470.18x = 554,706,337.68
  5. Step 5: Solve for x
    x = 554,706,337.68/31,470.18
  6. Step 6: Final answer
    x = 17,626.41

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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.