Home / 21,063.29-31,613.13-8,590.19

Finding the Fourth Proportional to 21,063.29, 31,613.13 and 8,590.19

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Solution

The fourth proportional to 21,063.29, 31,613.13 and 8,590.19 is: 12,892.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.29 : 31,613.13 = 8,590.19 : x
  2. Step 2: Convert to fraction form
    21,063.29/31,613.13 = 8,590.19/x
  3. Step 3: Cross multiply
    21,063.29x = 31,613.13 × 8,590.19
  4. Step 4: Simplify right side
    21,063.29x = 271,562,793.19
  5. Step 5: Solve for x
    x = 271,562,793.19/21,063.29
  6. Step 6: Final answer
    x = 12,892.71

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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.