Home / 18,881.73-28,320.75-5,734.21

Finding the Fourth Proportional to 18,881.73, 28,320.75 and 5,734.21

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Solution

The fourth proportional to 18,881.73, 28,320.75 and 5,734.21 is: 8,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.73 : 28,320.75 = 5,734.21 : x
  2. Step 2: Convert to fraction form
    18,881.73/28,320.75 = 5,734.21/x
  3. Step 3: Cross multiply
    18,881.73x = 28,320.75 × 5,734.21
  4. Step 4: Simplify right side
    18,881.73x = 162,397,127.86
  5. Step 5: Solve for x
    x = 162,397,127.86/18,881.73
  6. Step 6: Final answer
    x = 8,600.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.