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Finding the Fourth Proportional to 29,316.63, 40,456.99 and 15,887.89

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Solution

The fourth proportional to 29,316.63, 40,456.99 and 15,887.89 is: 21,925.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,316.63 : 40,456.99 = 15,887.89 : x
  2. Step 2: Convert to fraction form
    29,316.63/40,456.99 = 15,887.89/x
  3. Step 3: Cross multiply
    29,316.63x = 40,456.99 × 15,887.89
  4. Step 4: Simplify right side
    29,316.63x = 642,776,105.71
  5. Step 5: Solve for x
    x = 642,776,105.71/29,316.63
  6. Step 6: Final answer
    x = 21,925.30

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