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Finding the Fourth Proportional to 26,448, 39,684.80 and 10,870.08

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Solution

The fourth proportional to 26,448, 39,684.80 and 10,870.08 is: 16,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,448 : 39,684.80 = 10,870.08 : x
  2. Step 2: Convert to fraction form
    26,448/39,684.80 = 10,870.08/x
  3. Step 3: Cross multiply
    26,448x = 39,684.80 × 10,870.08
  4. Step 4: Simplify right side
    26,448x = 431,376,950.78
  5. Step 5: Solve for x
    x = 431,376,950.78/26,448
  6. Step 6: Final answer
    x = 16,310.38

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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.