Home / 31,445.92-47,197.08-28,108.90

Finding the Fourth Proportional to 31,445.92, 47,197.08 and 28,108.90

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Solution

The fourth proportional to 31,445.92, 47,197.08 and 28,108.90 is: 42,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.92 : 47,197.08 = 28,108.90 : x
  2. Step 2: Convert to fraction form
    31,445.92/47,197.08 = 28,108.90/x
  3. Step 3: Cross multiply
    31,445.92x = 47,197.08 × 28,108.90
  4. Step 4: Simplify right side
    31,445.92x = 1,326,658,002.01
  5. Step 5: Solve for x
    x = 1,326,658,002.01/31,445.92
  6. Step 6: Final answer
    x = 42,188.56

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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.