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Finding the Fourth Proportional to 26,400, 36,423.03 and 15,061.35

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Solution

The fourth proportional to 26,400, 36,423.03 and 15,061.35 is: 20,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,400 : 36,423.03 = 15,061.35 : x
  2. Step 2: Convert to fraction form
    26,400/36,423.03 = 15,061.35/x
  3. Step 3: Cross multiply
    26,400x = 36,423.03 × 15,061.35
  4. Step 4: Simplify right side
    26,400x = 548,580,002.89
  5. Step 5: Solve for x
    x = 548,580,002.89/26,400
  6. Step 6: Final answer
    x = 20,779.55

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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.