Home / 35,139.42-48,494.55-20,240.22

Finding the Fourth Proportional to 35,139.42, 48,494.55 and 20,240.22

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Solution

The fourth proportional to 35,139.42, 48,494.55 and 20,240.22 is: 27,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,139.42 : 48,494.55 = 20,240.22 : x
  2. Step 2: Convert to fraction form
    35,139.42/48,494.55 = 20,240.22/x
  3. Step 3: Cross multiply
    35,139.42x = 48,494.55 × 20,240.22
  4. Step 4: Simplify right side
    35,139.42x = 981,540,360.80
  5. Step 5: Solve for x
    x = 981,540,360.80/35,139.42
  6. Step 6: Final answer
    x = 27,932.74

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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.