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Finding the Fourth Proportional to 29,199, 40,294.80 and 15,951

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Solution

The fourth proportional to 29,199, 40,294.80 and 15,951 is: 22,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,199 : 40,294.80 = 15,951 : x
  2. Step 2: Convert to fraction form
    29,199/40,294.80 = 15,951/x
  3. Step 3: Cross multiply
    29,199x = 40,294.80 × 15,951
  4. Step 4: Simplify right side
    29,199x = 642,742,354.80
  5. Step 5: Solve for x
    x = 642,742,354.80/29,199
  6. Step 6: Final answer
    x = 22,012.48

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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.