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Finding the Fourth Proportional to 29,157, 43,508 and 26,015.40

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Solution

The fourth proportional to 29,157, 43,508 and 26,015.40 is: 38,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,157 : 43,508 = 26,015.40 : x
  2. Step 2: Convert to fraction form
    29,157/43,508 = 26,015.40/x
  3. Step 3: Cross multiply
    29,157x = 43,508 × 26,015.40
  4. Step 4: Simplify right side
    29,157x = 1,131,878,023.20
  5. Step 5: Solve for x
    x = 1,131,878,023.20/29,157
  6. Step 6: Final answer
    x = 38,820.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.