Home / 22,144.32-30,562.08-15,425.60

Finding the Fourth Proportional to 22,144.32, 30,562.08 and 15,425.60

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Solution

The fourth proportional to 22,144.32, 30,562.08 and 15,425.60 is: 21,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,144.32 : 30,562.08 = 15,425.60 : x
  2. Step 2: Convert to fraction form
    22,144.32/30,562.08 = 15,425.60/x
  3. Step 3: Cross multiply
    22,144.32x = 30,562.08 × 15,425.60
  4. Step 4: Simplify right side
    22,144.32x = 471,438,421.25
  5. Step 5: Solve for x
    x = 471,438,421.25/22,144.32
  6. Step 6: Final answer
    x = 21,289.36

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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.