Home / 20,832.96-31,200.16-18,082.08

Finding the Fourth Proportional to 20,832.96, 31,200.16 and 18,082.08

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Solution

The fourth proportional to 20,832.96, 31,200.16 and 18,082.08 is: 27,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.96 : 31,200.16 = 18,082.08 : x
  2. Step 2: Convert to fraction form
    20,832.96/31,200.16 = 18,082.08/x
  3. Step 3: Cross multiply
    20,832.96x = 31,200.16 × 18,082.08
  4. Step 4: Simplify right side
    20,832.96x = 564,163,789.13
  5. Step 5: Solve for x
    x = 564,163,789.13/20,832.96
  6. Step 6: Final answer
    x = 27,080.35

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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.