Home / 37,147.47-51,262.88-20,380.11

Finding the Fourth Proportional to 37,147.47, 51,262.88 and 20,380.11

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Solution

The fourth proportional to 37,147.47, 51,262.88 and 20,380.11 is: 28,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,147.47 : 51,262.88 = 20,380.11 : x
  2. Step 2: Convert to fraction form
    37,147.47/51,262.88 = 20,380.11/x
  3. Step 3: Cross multiply
    37,147.47x = 51,262.88 × 20,380.11
  4. Step 4: Simplify right side
    37,147.47x = 1,044,743,031.42
  5. Step 5: Solve for x
    x = 1,044,743,031.42/37,147.47
  6. Step 6: Final answer
    x = 28,124.20

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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.