Home / 31,469.91-47,188.61-9,280.47

Finding the Fourth Proportional to 31,469.91, 47,188.61 and 9,280.47

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Solution

The fourth proportional to 31,469.91, 47,188.61 and 9,280.47 is: 13,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.91 : 47,188.61 = 9,280.47 : x
  2. Step 2: Convert to fraction form
    31,469.91/47,188.61 = 9,280.47/x
  3. Step 3: Cross multiply
    31,469.91x = 47,188.61 × 9,280.47
  4. Step 4: Simplify right side
    31,469.91x = 437,932,266.70
  5. Step 5: Solve for x
    x = 437,932,266.70/31,469.91
  6. Step 6: Final answer
    x = 13,915.90

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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.