Home / 20,587.70-28,389.66-17,613.38

Finding the Fourth Proportional to 20,587.70, 28,389.66 and 17,613.38

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Solution

The fourth proportional to 20,587.70, 28,389.66 and 17,613.38 is: 24,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.70 : 28,389.66 = 17,613.38 : x
  2. Step 2: Convert to fraction form
    20,587.70/28,389.66 = 17,613.38/x
  3. Step 3: Cross multiply
    20,587.70x = 28,389.66 × 17,613.38
  4. Step 4: Simplify right side
    20,587.70x = 500,037,869.65
  5. Step 5: Solve for x
    x = 500,037,869.65/20,587.70
  6. Step 6: Final answer
    x = 24,288.19

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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.