Home / 31,621.68-47,187-27,422.64

Finding the Fourth Proportional to 31,621.68, 47,187 and 27,422.64

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Solution

The fourth proportional to 31,621.68, 47,187 and 27,422.64 is: 40,921.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.68 : 47,187 = 27,422.64 : x
  2. Step 2: Convert to fraction form
    31,621.68/47,187 = 27,422.64/x
  3. Step 3: Cross multiply
    31,621.68x = 47,187 × 27,422.64
  4. Step 4: Simplify right side
    31,621.68x = 1,293,992,113.68
  5. Step 5: Solve for x
    x = 1,293,992,113.68/31,621.68
  6. Step 6: Final answer
    x = 40,921.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.