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Finding the Fourth Proportional to 29,670.68, 40,927.11 and 18,343.64

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Solution

The fourth proportional to 29,670.68, 40,927.11 and 18,343.64 is: 25,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,670.68 : 40,927.11 = 18,343.64 : x
  2. Step 2: Convert to fraction form
    29,670.68/40,927.11 = 18,343.64/x
  3. Step 3: Cross multiply
    29,670.68x = 40,927.11 × 18,343.64
  4. Step 4: Simplify right side
    29,670.68x = 750,752,205.61
  5. Step 5: Solve for x
    x = 750,752,205.61/29,670.68
  6. Step 6: Final answer
    x = 25,302.83

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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.