Home / 35,815.20-49,419.48-20,704.92

Finding the Fourth Proportional to 35,815.20, 49,419.48 and 20,704.92

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Solution

The fourth proportional to 35,815.20, 49,419.48 and 20,704.92 is: 28,569.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,815.20 : 49,419.48 = 20,704.92 : x
  2. Step 2: Convert to fraction form
    35,815.20/49,419.48 = 20,704.92/x
  3. Step 3: Cross multiply
    35,815.20x = 49,419.48 × 20,704.92
  4. Step 4: Simplify right side
    35,815.20x = 1,023,226,379.84
  5. Step 5: Solve for x
    x = 1,023,226,379.84/35,815.20
  6. Step 6: Final answer
    x = 28,569.61

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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.