Home / 21,398.83-32,105.85-9,551.53

Finding the Fourth Proportional to 21,398.83, 32,105.85 and 9,551.53

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Solution

The fourth proportional to 21,398.83, 32,105.85 and 9,551.53 is: 14,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.83 : 32,105.85 = 9,551.53 : x
  2. Step 2: Convert to fraction form
    21,398.83/32,105.85 = 9,551.53/x
  3. Step 3: Cross multiply
    21,398.83x = 32,105.85 × 9,551.53
  4. Step 4: Simplify right side
    21,398.83x = 306,659,989.45
  5. Step 5: Solve for x
    x = 306,659,989.45/21,398.83
  6. Step 6: Final answer
    x = 14,330.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.