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Finding the Fourth Proportional to 27,121.80, 40,619.52 and 26,374.38

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Solution

The fourth proportional to 27,121.80, 40,619.52 and 26,374.38 is: 39,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.80 : 40,619.52 = 26,374.38 : x
  2. Step 2: Convert to fraction form
    27,121.80/40,619.52 = 26,374.38/x
  3. Step 3: Cross multiply
    27,121.80x = 40,619.52 × 26,374.38
  4. Step 4: Simplify right side
    27,121.80x = 1,071,314,655.90
  5. Step 5: Solve for x
    x = 1,071,314,655.90/27,121.80
  6. Step 6: Final answer
    x = 39,500.13

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1.5x scale

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.