Home / 18,881.42-28,320.29-5,733.90

Finding the Fourth Proportional to 18,881.42, 28,320.29 and 5,733.90

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Solution

The fourth proportional to 18,881.42, 28,320.29 and 5,733.90 is: 8,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.42 : 28,320.29 = 5,733.90 : x
  2. Step 2: Convert to fraction form
    18,881.42/28,320.29 = 5,733.90/x
  3. Step 3: Cross multiply
    18,881.42x = 28,320.29 × 5,733.90
  4. Step 4: Simplify right side
    18,881.42x = 162,385,682.16
  5. Step 5: Solve for x
    x = 162,385,682.16/18,881.42
  6. Step 6: Final answer
    x = 8,600.29

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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.