Home / 36,031.76-49,722.96-20,117.68

Finding the Fourth Proportional to 36,031.76, 49,722.96 and 20,117.68

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Solution

The fourth proportional to 36,031.76, 49,722.96 and 20,117.68 is: 27,761.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,031.76 : 49,722.96 = 20,117.68 : x
  2. Step 2: Convert to fraction form
    36,031.76/49,722.96 = 20,117.68/x
  3. Step 3: Cross multiply
    36,031.76x = 49,722.96 × 20,117.68
  4. Step 4: Simplify right side
    36,031.76x = 1,000,310,597.93
  5. Step 5: Solve for x
    x = 1,000,310,597.93/36,031.76
  6. Step 6: Final answer
    x = 27,761.91

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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.