Home / 29,321.76-40,517.60-21,350.08

Finding the Fourth Proportional to 29,321.76, 40,517.60 and 21,350.08

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Solution

The fourth proportional to 29,321.76, 40,517.60 and 21,350.08 is: 29,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,321.76 : 40,517.60 = 21,350.08 : x
  2. Step 2: Convert to fraction form
    29,321.76/40,517.60 = 21,350.08/x
  3. Step 3: Cross multiply
    29,321.76x = 40,517.60 × 21,350.08
  4. Step 4: Simplify right side
    29,321.76x = 865,054,001.41
  5. Step 5: Solve for x
    x = 865,054,001.41/29,321.76
  6. Step 6: Final answer
    x = 29,502.12

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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.