Home / 31,915.91-47,853.32-15,275.54

Finding the Fourth Proportional to 31,915.91, 47,853.32 and 15,275.54

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Solution

The fourth proportional to 31,915.91, 47,853.32 and 15,275.54 is: 22,903.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,915.91 : 47,853.32 = 15,275.54 : x
  2. Step 2: Convert to fraction form
    31,915.91/47,853.32 = 15,275.54/x
  3. Step 3: Cross multiply
    31,915.91x = 47,853.32 × 15,275.54
  4. Step 4: Simplify right side
    31,915.91x = 730,985,347.05
  5. Step 5: Solve for x
    x = 730,985,347.05/31,915.91
  6. Step 6: Final answer
    x = 22,903.48

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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.