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Finding the Fourth Proportional to 26,451, 39,686.49 and 13,970.52

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Solution

The fourth proportional to 26,451, 39,686.49 and 13,970.52 is: 20,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,451 : 39,686.49 = 13,970.52 : x
  2. Step 2: Convert to fraction form
    26,451/39,686.49 = 13,970.52/x
  3. Step 3: Cross multiply
    26,451x = 39,686.49 × 13,970.52
  4. Step 4: Simplify right side
    26,451x = 554,440,902.27
  5. Step 5: Solve for x
    x = 554,440,902.27/26,451
  6. Step 6: Final answer
    x = 20,961.06

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Why These Related Problems?

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