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Finding the Fourth Proportional to 15,752.40, 23,663.80 and 13,160.40

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Solution

The fourth proportional to 15,752.40, 23,663.80 and 13,160.40 is: 19,770.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,752.40 : 23,663.80 = 13,160.40 : x
  2. Step 2: Convert to fraction form
    15,752.40/23,663.80 = 13,160.40/x
  3. Step 3: Cross multiply
    15,752.40x = 23,663.80 × 13,160.40
  4. Step 4: Simplify right side
    15,752.40x = 311,425,073.52
  5. Step 5: Solve for x
    x = 311,425,073.52/15,752.40
  6. Step 6: Final answer
    x = 19,770.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.