Home / 22,200.48-30,641.76-15,500.16

Finding the Fourth Proportional to 22,200.48, 30,641.76 and 15,500.16

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Solution

The fourth proportional to 22,200.48, 30,641.76 and 15,500.16 is: 21,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.48 : 30,641.76 = 15,500.16 : x
  2. Step 2: Convert to fraction form
    22,200.48/30,641.76 = 15,500.16/x
  3. Step 3: Cross multiply
    22,200.48x = 30,641.76 × 15,500.16
  4. Step 4: Simplify right side
    22,200.48x = 474,952,182.68
  5. Step 5: Solve for x
    x = 474,952,182.68/22,200.48
  6. Step 6: Final answer
    x = 21,393.78

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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.