Home / 37,175.76-51,302.20-20,408.40

Finding the Fourth Proportional to 37,175.76, 51,302.20 and 20,408.40

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Solution

The fourth proportional to 37,175.76, 51,302.20 and 20,408.40 is: 28,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,175.76 : 51,302.20 = 20,408.40 : x
  2. Step 2: Convert to fraction form
    37,175.76/51,302.20 = 20,408.40/x
  3. Step 3: Cross multiply
    37,175.76x = 51,302.20 × 20,408.40
  4. Step 4: Simplify right side
    37,175.76x = 1,046,995,818.48
  5. Step 5: Solve for x
    x = 1,046,995,818.48/37,175.76
  6. Step 6: Final answer
    x = 28,163.40

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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.