Home / 20,293.18-28,004.04-11,340.76

Finding the Fourth Proportional to 20,293.18, 28,004.04 and 11,340.76

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Solution

The fourth proportional to 20,293.18, 28,004.04 and 11,340.76 is: 15,649.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.18 : 28,004.04 = 11,340.76 : x
  2. Step 2: Convert to fraction form
    20,293.18/28,004.04 = 11,340.76/x
  3. Step 3: Cross multiply
    20,293.18x = 28,004.04 × 11,340.76
  4. Step 4: Simplify right side
    20,293.18x = 317,587,096.67
  5. Step 5: Solve for x
    x = 317,587,096.67/20,293.18
  6. Step 6: Final answer
    x = 15,649.94

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Half scale
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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.