Home / 37,123.90-51,230.80-20,128.08

Finding the Fourth Proportional to 37,123.90, 51,230.80 and 20,128.08

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Solution

The fourth proportional to 37,123.90, 51,230.80 and 20,128.08 is: 27,776.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,123.90 : 51,230.80 = 20,128.08 : x
  2. Step 2: Convert to fraction form
    37,123.90/51,230.80 = 20,128.08/x
  3. Step 3: Cross multiply
    37,123.90x = 51,230.80 × 20,128.08
  4. Step 4: Simplify right side
    37,123.90x = 1,031,177,640.86
  5. Step 5: Solve for x
    x = 1,031,177,640.86/37,123.90
  6. Step 6: Final answer
    x = 27,776.65

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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.