Home / 18,937.33-28,364.68-15,613.09

Finding the Fourth Proportional to 18,937.33, 28,364.68 and 15,613.09

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Solution

The fourth proportional to 18,937.33, 28,364.68 and 15,613.09 is: 23,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.33 : 28,364.68 = 15,613.09 : x
  2. Step 2: Convert to fraction form
    18,937.33/28,364.68 = 15,613.09/x
  3. Step 3: Cross multiply
    18,937.33x = 28,364.68 × 15,613.09
  4. Step 4: Simplify right side
    18,937.33x = 442,860,120.81
  5. Step 5: Solve for x
    x = 442,860,120.81/18,937.33
  6. Step 6: Final answer
    x = 23,385.57

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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.