Home / 31,280.96-43,168.20-17,135.12

Finding the Fourth Proportional to 31,280.96, 43,168.20 and 17,135.12

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Solution

The fourth proportional to 31,280.96, 43,168.20 and 17,135.12 is: 23,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.96 : 43,168.20 = 17,135.12 : x
  2. Step 2: Convert to fraction form
    31,280.96/43,168.20 = 17,135.12/x
  3. Step 3: Cross multiply
    31,280.96x = 43,168.20 × 17,135.12
  4. Step 4: Simplify right side
    31,280.96x = 739,692,287.18
  5. Step 5: Solve for x
    x = 739,692,287.18/31,280.96
  6. Step 6: Final answer
    x = 23,646.73

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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.