Home / 20,047.47-30,042.45-11,263.92

Finding the Fourth Proportional to 20,047.47, 30,042.45 and 11,263.92

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Solution

The fourth proportional to 20,047.47, 30,042.45 and 11,263.92 is: 16,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.47 : 30,042.45 = 11,263.92 : x
  2. Step 2: Convert to fraction form
    20,047.47/30,042.45 = 11,263.92/x
  3. Step 3: Cross multiply
    20,047.47x = 30,042.45 × 11,263.92
  4. Step 4: Simplify right side
    20,047.47x = 338,395,753.40
  5. Step 5: Solve for x
    x = 338,395,753.40/20,047.47
  6. Step 6: Final answer
    x = 16,879.72

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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.