Home / 26,902.15-40,374.28-18,640.15

Finding the Fourth Proportional to 26,902.15, 40,374.28 and 18,640.15

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Solution

The fourth proportional to 26,902.15, 40,374.28 and 18,640.15 is: 27,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,902.15 : 40,374.28 = 18,640.15 : x
  2. Step 2: Convert to fraction form
    26,902.15/40,374.28 = 18,640.15/x
  3. Step 3: Cross multiply
    26,902.15x = 40,374.28 × 18,640.15
  4. Step 4: Simplify right side
    26,902.15x = 752,582,557.71
  5. Step 5: Solve for x
    x = 752,582,557.71/26,902.15
  6. Step 6: Final answer
    x = 27,974.81

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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.