Home / 22,050.16-30,432.96-21,321.20

Finding the Fourth Proportional to 22,050.16, 30,432.96 and 21,321.20

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Solution

The fourth proportional to 22,050.16, 30,432.96 and 21,321.20 is: 29,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,050.16 : 30,432.96 = 21,321.20 : x
  2. Step 2: Convert to fraction form
    22,050.16/30,432.96 = 21,321.20/x
  3. Step 3: Cross multiply
    22,050.16x = 30,432.96 × 21,321.20
  4. Step 4: Simplify right side
    22,050.16x = 648,867,226.75
  5. Step 5: Solve for x
    x = 648,867,226.75/22,050.16
  6. Step 6: Final answer
    x = 29,426.87

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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.