Home / 31,178.76-43,026.68-17,031.62

Finding the Fourth Proportional to 31,178.76, 43,026.68 and 17,031.62

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Solution

The fourth proportional to 31,178.76, 43,026.68 and 17,031.62 is: 23,503.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.76 : 43,026.68 = 17,031.62 : x
  2. Step 2: Convert to fraction form
    31,178.76/43,026.68 = 17,031.62/x
  3. Step 3: Cross multiply
    31,178.76x = 43,026.68 × 17,031.62
  4. Step 4: Simplify right side
    31,178.76x = 732,814,063.62
  5. Step 5: Solve for x
    x = 732,814,063.62/31,178.76
  6. Step 6: Final answer
    x = 23,503.63

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Double scale
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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.