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Finding the Fourth Proportional to 29,657, 40,926.66 and 18,479

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Solution

The fourth proportional to 29,657, 40,926.66 and 18,479 is: 25,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,657 : 40,926.66 = 18,479 : x
  2. Step 2: Convert to fraction form
    29,657/40,926.66 = 18,479/x
  3. Step 3: Cross multiply
    29,657x = 40,926.66 × 18,479
  4. Step 4: Simplify right side
    29,657x = 756,283,750.14
  5. Step 5: Solve for x
    x = 756,283,750.14/29,657
  6. Step 6: Final answer
    x = 25,501.02

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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.