Home / 31,652.10-43,685.28-18,231.12

Finding the Fourth Proportional to 31,652.10, 43,685.28 and 18,231.12

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Solution

The fourth proportional to 31,652.10, 43,685.28 and 18,231.12 is: 25,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,652.10 : 43,685.28 = 18,231.12 : x
  2. Step 2: Convert to fraction form
    31,652.10/43,685.28 = 18,231.12/x
  3. Step 3: Cross multiply
    31,652.10x = 43,685.28 × 18,231.12
  4. Step 4: Simplify right side
    31,652.10x = 796,431,581.91
  5. Step 5: Solve for x
    x = 796,431,581.91/31,652.10
  6. Step 6: Final answer
    x = 25,162.05

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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.