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Finding the Fourth Proportional to 29,409.64, 40,584.66 and 15,980.76

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Solution

The fourth proportional to 29,409.64, 40,584.66 and 15,980.76 is: 22,053.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,409.64 : 40,584.66 = 15,980.76 : x
  2. Step 2: Convert to fraction form
    29,409.64/40,584.66 = 15,980.76/x
  3. Step 3: Cross multiply
    29,409.64x = 40,584.66 × 15,980.76
  4. Step 4: Simplify right side
    29,409.64x = 648,573,711.14
  5. Step 5: Solve for x
    x = 648,573,711.14/29,409.64
  6. Step 6: Final answer
    x = 22,053.10

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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.