Home / 26,679.42-36,815.19-15,345.90

Finding the Fourth Proportional to 26,679.42, 36,815.19 and 15,345.90

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Solution

The fourth proportional to 26,679.42, 36,815.19 and 15,345.90 is: 21,175.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.42 : 36,815.19 = 15,345.90 : x
  2. Step 2: Convert to fraction form
    26,679.42/36,815.19 = 15,345.90/x
  3. Step 3: Cross multiply
    26,679.42x = 36,815.19 × 15,345.90
  4. Step 4: Simplify right side
    26,679.42x = 564,962,224.22
  5. Step 5: Solve for x
    x = 564,962,224.22/26,679.42
  6. Step 6: Final answer
    x = 21,175.96

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1.5x scale

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.