Home / 47,399.48-65,432.16-28,285.88

Finding the Fourth Proportional to 47,399.48, 65,432.16 and 28,285.88

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Solution

The fourth proportional to 47,399.48, 65,432.16 and 28,285.88 is: 39,046.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,399.48 : 65,432.16 = 28,285.88 : x
  2. Step 2: Convert to fraction form
    47,399.48/65,432.16 = 28,285.88/x
  3. Step 3: Cross multiply
    47,399.48x = 65,432.16 × 28,285.88
  4. Step 4: Simplify right side
    47,399.48x = 1,850,806,225.90
  5. Step 5: Solve for x
    x = 1,850,806,225.90/47,399.48
  6. Step 6: Final answer
    x = 39,046.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.