Home / 35,489.92-48,974.28-20,372.08

Finding the Fourth Proportional to 35,489.92, 48,974.28 and 20,372.08

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Solution

The fourth proportional to 35,489.92, 48,974.28 and 20,372.08 is: 28,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.92 : 48,974.28 = 20,372.08 : x
  2. Step 2: Convert to fraction form
    35,489.92/48,974.28 = 20,372.08/x
  3. Step 3: Cross multiply
    35,489.92x = 48,974.28 × 20,372.08
  4. Step 4: Simplify right side
    35,489.92x = 997,707,950.10
  5. Step 5: Solve for x
    x = 997,707,950.10/35,489.92
  6. Step 6: Final answer
    x = 28,112.43

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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.