Home / 28,781.75-39,707.89-17,447.11

Finding the Fourth Proportional to 28,781.75, 39,707.89 and 17,447.11

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Solution

The fourth proportional to 28,781.75, 39,707.89 and 17,447.11 is: 24,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.75 : 39,707.89 = 17,447.11 : x
  2. Step 2: Convert to fraction form
    28,781.75/39,707.89 = 17,447.11/x
  3. Step 3: Cross multiply
    28,781.75x = 39,707.89 × 17,447.11
  4. Step 4: Simplify right side
    28,781.75x = 692,787,638.92
  5. Step 5: Solve for x
    x = 692,787,638.92/28,781.75
  6. Step 6: Final answer
    x = 24,070.38

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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.