Home / 19,839.87-27,379.22-10,887.55

Finding the Fourth Proportional to 19,839.87, 27,379.22 and 10,887.55

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Solution

The fourth proportional to 19,839.87, 27,379.22 and 10,887.55 is: 15,024.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.87 : 27,379.22 = 10,887.55 : x
  2. Step 2: Convert to fraction form
    19,839.87/27,379.22 = 10,887.55/x
  3. Step 3: Cross multiply
    19,839.87x = 27,379.22 × 10,887.55
  4. Step 4: Simplify right side
    19,839.87x = 298,092,503.83
  5. Step 5: Solve for x
    x = 298,092,503.83/19,839.87
  6. Step 6: Final answer
    x = 15,024.92

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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.