Home / 37,079.76-51,170.06-20,312.76

Finding the Fourth Proportional to 37,079.76, 51,170.06 and 20,312.76

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Solution

The fourth proportional to 37,079.76, 51,170.06 and 20,312.76 is: 28,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,079.76 : 51,170.06 = 20,312.76 : x
  2. Step 2: Convert to fraction form
    37,079.76/51,170.06 = 20,312.76/x
  3. Step 3: Cross multiply
    37,079.76x = 51,170.06 × 20,312.76
  4. Step 4: Simplify right side
    37,079.76x = 1,039,405,147.97
  5. Step 5: Solve for x
    x = 1,039,405,147.97/37,079.76
  6. Step 6: Final answer
    x = 28,031.60

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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.