Home / 37,142.08-51,256.08-20,375.20

Finding the Fourth Proportional to 37,142.08, 51,256.08 and 20,375.20

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Solution

The fourth proportional to 37,142.08, 51,256.08 and 20,375.20 is: 28,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,142.08 : 51,256.08 = 20,375.20 : x
  2. Step 2: Convert to fraction form
    37,142.08/51,256.08 = 20,375.20/x
  3. Step 3: Cross multiply
    37,142.08x = 51,256.08 × 20,375.20
  4. Step 4: Simplify right side
    37,142.08x = 1,044,352,881.22
  5. Step 5: Solve for x
    x = 1,044,352,881.22/37,142.08
  6. Step 6: Final answer
    x = 28,117.78

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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.