Home / 28,517.85-39,348.32-17,903.61

Finding the Fourth Proportional to 28,517.85, 39,348.32 and 17,903.61

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Solution

The fourth proportional to 28,517.85, 39,348.32 and 17,903.61 is: 24,703.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.85 : 39,348.32 = 17,903.61 : x
  2. Step 2: Convert to fraction form
    28,517.85/39,348.32 = 17,903.61/x
  3. Step 3: Cross multiply
    28,517.85x = 39,348.32 × 17,903.61
  4. Step 4: Simplify right side
    28,517.85x = 704,476,885.92
  5. Step 5: Solve for x
    x = 704,476,885.92/28,517.85
  6. Step 6: Final answer
    x = 24,703.02

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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.