Home / 27,117.43-40,680.10-8,398.91

Finding the Fourth Proportional to 27,117.43, 40,680.10 and 8,398.91

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Solution

The fourth proportional to 27,117.43, 40,680.10 and 8,398.91 is: 12,599.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,117.43 : 40,680.10 = 8,398.91 : x
  2. Step 2: Convert to fraction form
    27,117.43/40,680.10 = 8,398.91/x
  3. Step 3: Cross multiply
    27,117.43x = 40,680.10 × 8,398.91
  4. Step 4: Simplify right side
    27,117.43x = 341,668,498.69
  5. Step 5: Solve for x
    x = 341,668,498.69/27,117.43
  6. Step 6: Final answer
    x = 12,599.59

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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.