Home / 37,138.75-51,251.75-20,371.75

Finding the Fourth Proportional to 37,138.75, 51,251.75 and 20,371.75

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Solution

The fourth proportional to 37,138.75, 51,251.75 and 20,371.75 is: 28,113.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,138.75 : 51,251.75 = 20,371.75 : x
  2. Step 2: Convert to fraction form
    37,138.75/51,251.75 = 20,371.75/x
  3. Step 3: Cross multiply
    37,138.75x = 51,251.75 × 20,371.75
  4. Step 4: Simplify right side
    37,138.75x = 1,044,087,838.06
  5. Step 5: Solve for x
    x = 1,044,087,838.06/37,138.75
  6. Step 6: Final answer
    x = 28,113.17

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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.