Home / 29,420.60-40,600.67-15,991.85

Finding the Fourth Proportional to 29,420.60, 40,600.67 and 15,991.85

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Solution

The fourth proportional to 29,420.60, 40,600.67 and 15,991.85 is: 22,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.60 : 40,600.67 = 15,991.85 : x
  2. Step 2: Convert to fraction form
    29,420.60/40,600.67 = 15,991.85/x
  3. Step 3: Cross multiply
    29,420.60x = 40,600.67 × 15,991.85
  4. Step 4: Simplify right side
    29,420.60x = 649,279,824.54
  5. Step 5: Solve for x
    x = 649,279,824.54/29,420.60
  6. Step 6: Final answer
    x = 22,068.88

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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.