Home / 20,418.53-30,635.72-7,947.32

Finding the Fourth Proportional to 20,418.53, 30,635.72 and 7,947.32

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Solution

The fourth proportional to 20,418.53, 30,635.72 and 7,947.32 is: 11,924.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,418.53 : 30,635.72 = 7,947.32 : x
  2. Step 2: Convert to fraction form
    20,418.53/30,635.72 = 7,947.32/x
  3. Step 3: Cross multiply
    20,418.53x = 30,635.72 × 7,947.32
  4. Step 4: Simplify right side
    20,418.53x = 243,471,707.16
  5. Step 5: Solve for x
    x = 243,471,707.16/20,418.53
  6. Step 6: Final answer
    x = 11,924.06

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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.