Home / 31,470.72-47,173.02-15,855.60

Finding the Fourth Proportional to 31,470.72, 47,173.02 and 15,855.60

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Solution

The fourth proportional to 31,470.72, 47,173.02 and 15,855.60 is: 23,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.72 : 47,173.02 = 15,855.60 : x
  2. Step 2: Convert to fraction form
    31,470.72/47,173.02 = 15,855.60/x
  3. Step 3: Cross multiply
    31,470.72x = 47,173.02 × 15,855.60
  4. Step 4: Simplify right side
    31,470.72x = 747,956,535.91
  5. Step 5: Solve for x
    x = 747,956,535.91/31,470.72
  6. Step 6: Final answer
    x = 23,766.74

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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.