Home / 37,123.95-51,231.40-20,128.15

Finding the Fourth Proportional to 37,123.95, 51,231.40 and 20,128.15

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Solution

The fourth proportional to 37,123.95, 51,231.40 and 20,128.15 is: 27,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,123.95 : 51,231.40 = 20,128.15 : x
  2. Step 2: Convert to fraction form
    37,123.95/51,231.40 = 20,128.15/x
  3. Step 3: Cross multiply
    37,123.95x = 51,231.40 × 20,128.15
  4. Step 4: Simplify right side
    37,123.95x = 1,031,193,303.91
  5. Step 5: Solve for x
    x = 1,031,193,303.91/37,123.95
  6. Step 6: Final answer
    x = 27,777.04

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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.