Home / 28,613.38-39,486.94-15,867.10

Finding the Fourth Proportional to 28,613.38, 39,486.94 and 15,867.10

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Solution

The fourth proportional to 28,613.38, 39,486.94 and 15,867.10 is: 21,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.38 : 39,486.94 = 15,867.10 : x
  2. Step 2: Convert to fraction form
    28,613.38/39,486.94 = 15,867.10/x
  3. Step 3: Cross multiply
    28,613.38x = 39,486.94 × 15,867.10
  4. Step 4: Simplify right side
    28,613.38x = 626,543,225.67
  5. Step 5: Solve for x
    x = 626,543,225.67/28,613.38
  6. Step 6: Final answer
    x = 21,896.86

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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.