Home / 25,672.79-35,431.08-18,508.61

Finding the Fourth Proportional to 25,672.79, 35,431.08 and 18,508.61

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Solution

The fourth proportional to 25,672.79, 35,431.08 and 18,508.61 is: 25,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,672.79 : 35,431.08 = 18,508.61 : x
  2. Step 2: Convert to fraction form
    25,672.79/35,431.08 = 18,508.61/x
  3. Step 3: Cross multiply
    25,672.79x = 35,431.08 × 18,508.61
  4. Step 4: Simplify right side
    25,672.79x = 655,780,041.60
  5. Step 5: Solve for x
    x = 655,780,041.60/25,672.79
  6. Step 6: Final answer
    x = 25,543.78

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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.