Home / 36,947.76-50,989.68-20,820.72

Finding the Fourth Proportional to 36,947.76, 50,989.68 and 20,820.72

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Solution

The fourth proportional to 36,947.76, 50,989.68 and 20,820.72 is: 28,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,947.76 : 50,989.68 = 20,820.72 : x
  2. Step 2: Convert to fraction form
    36,947.76/50,989.68 = 20,820.72/x
  3. Step 3: Cross multiply
    36,947.76x = 50,989.68 × 20,820.72
  4. Step 4: Simplify right side
    36,947.76x = 1,061,641,850.17
  5. Step 5: Solve for x
    x = 1,061,641,850.17/36,947.76
  6. Step 6: Final answer
    x = 28,733.59

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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.