Home / 37,139.68-51,252.48-20,372.56

Finding the Fourth Proportional to 37,139.68, 51,252.48 and 20,372.56

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Solution

The fourth proportional to 37,139.68, 51,252.48 and 20,372.56 is: 28,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.68 : 51,252.48 = 20,372.56 : x
  2. Step 2: Convert to fraction form
    37,139.68/51,252.48 = 20,372.56/x
  3. Step 3: Cross multiply
    37,139.68x = 51,252.48 × 20,372.56
  4. Step 4: Simplify right side
    37,139.68x = 1,044,144,223.95
  5. Step 5: Solve for x
    x = 1,044,144,223.95/37,139.68
  6. Step 6: Final answer
    x = 28,113.98

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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.