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Finding the Fourth Proportional to 29,316.12, 40,456.02 and 15,887.53

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Solution

The fourth proportional to 29,316.12, 40,456.02 and 15,887.53 is: 21,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,316.12 : 40,456.02 = 15,887.53 : x
  2. Step 2: Convert to fraction form
    29,316.12/40,456.02 = 15,887.53/x
  3. Step 3: Cross multiply
    29,316.12x = 40,456.02 × 15,887.53
  4. Step 4: Simplify right side
    29,316.12x = 642,746,231.43
  5. Step 5: Solve for x
    x = 642,746,231.43/29,316.12
  6. Step 6: Final answer
    x = 21,924.67

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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.