Home / 20,292.74-28,003.91-11,340.24

Finding the Fourth Proportional to 20,292.74, 28,003.91 and 11,340.24

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Solution

The fourth proportional to 20,292.74, 28,003.91 and 11,340.24 is: 15,649.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.74 : 28,003.91 = 11,340.24 : x
  2. Step 2: Convert to fraction form
    20,292.74/28,003.91 = 11,340.24/x
  3. Step 3: Cross multiply
    20,292.74x = 28,003.91 × 11,340.24
  4. Step 4: Simplify right side
    20,292.74x = 317,571,134.91
  5. Step 5: Solve for x
    x = 317,571,134.91/20,292.74
  6. Step 6: Final answer
    x = 15,649.49

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Half scale
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Double 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.