Home / 31,445.72-47,165-11,724.92

Finding the Fourth Proportional to 31,445.72, 47,165 and 11,724.92

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Solution

The fourth proportional to 31,445.72, 47,165 and 11,724.92 is: 17,586.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.72 : 47,165 = 11,724.92 : x
  2. Step 2: Convert to fraction form
    31,445.72/47,165 = 11,724.92/x
  3. Step 3: Cross multiply
    31,445.72x = 47,165 × 11,724.92
  4. Step 4: Simplify right side
    31,445.72x = 553,005,851.80
  5. Step 5: Solve for x
    x = 553,005,851.80/31,445.72
  6. Step 6: Final answer
    x = 17,586.05

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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.