Home / 42,586.20-63,831.78-18,898.56

Finding the Fourth Proportional to 42,586.20, 63,831.78 and 18,898.56

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Solution

The fourth proportional to 42,586.20, 63,831.78 and 18,898.56 is: 28,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,586.20 : 63,831.78 = 18,898.56 : x
  2. Step 2: Convert to fraction form
    42,586.20/63,831.78 = 18,898.56/x
  3. Step 3: Cross multiply
    42,586.20x = 63,831.78 × 18,898.56
  4. Step 4: Simplify right side
    42,586.20x = 1,206,328,724.24
  5. Step 5: Solve for x
    x = 1,206,328,724.24/42,586.20
  6. Step 6: Final answer
    x = 28,326.75

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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.