Home / 26,870.52-40,286.52-12,631.02

Finding the Fourth Proportional to 26,870.52, 40,286.52 and 12,631.02

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Solution

The fourth proportional to 26,870.52, 40,286.52 and 12,631.02 is: 18,937.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,870.52 : 40,286.52 = 12,631.02 : x
  2. Step 2: Convert to fraction form
    26,870.52/40,286.52 = 12,631.02/x
  3. Step 3: Cross multiply
    26,870.52x = 40,286.52 × 12,631.02
  4. Step 4: Simplify right side
    26,870.52x = 508,859,839.85
  5. Step 5: Solve for x
    x = 508,859,839.85/26,870.52
  6. Step 6: Final answer
    x = 18,937.48

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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.