Home / 20,767.32-31,151.52-15,845.76

Finding the Fourth Proportional to 20,767.32, 31,151.52 and 15,845.76

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Solution

The fourth proportional to 20,767.32, 31,151.52 and 15,845.76 is: 23,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.32 : 31,151.52 = 15,845.76 : x
  2. Step 2: Convert to fraction form
    20,767.32/31,151.52 = 15,845.76/x
  3. Step 3: Cross multiply
    20,767.32x = 31,151.52 × 15,845.76
  4. Step 4: Simplify right side
    20,767.32x = 493,619,509.56
  5. Step 5: Solve for x
    x = 493,619,509.56/20,767.32
  6. Step 6: Final answer
    x = 23,769.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.