Home / 20,151.87-30,227.76-5,360.79

Finding the Fourth Proportional to 20,151.87, 30,227.76 and 5,360.79

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Solution

The fourth proportional to 20,151.87, 30,227.76 and 5,360.79 is: 8,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.87 : 30,227.76 = 5,360.79 : x
  2. Step 2: Convert to fraction form
    20,151.87/30,227.76 = 5,360.79/x
  3. Step 3: Cross multiply
    20,151.87x = 30,227.76 × 5,360.79
  4. Step 4: Simplify right side
    20,151.87x = 162,044,673.53
  5. Step 5: Solve for x
    x = 162,044,673.53/20,151.87
  6. Step 6: Final answer
    x = 8,041.17

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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.