Home / 31,229.68-43,088.28-18,649.84

Finding the Fourth Proportional to 31,229.68, 43,088.28 and 18,649.84

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Solution

The fourth proportional to 31,229.68, 43,088.28 and 18,649.84 is: 25,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,229.68 : 43,088.28 = 18,649.84 : x
  2. Step 2: Convert to fraction form
    31,229.68/43,088.28 = 18,649.84/x
  3. Step 3: Cross multiply
    31,229.68x = 43,088.28 × 18,649.84
  4. Step 4: Simplify right side
    31,229.68x = 803,589,527.88
  5. Step 5: Solve for x
    x = 803,589,527.88/31,229.68
  6. Step 6: Final answer
    x = 25,731.60

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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.