Home / 55,282.08-82,921.56-13,728.96

Finding the Fourth Proportional to 55,282.08, 82,921.56 and 13,728.96

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Solution

The fourth proportional to 55,282.08, 82,921.56 and 13,728.96 is: 20,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,282.08 : 82,921.56 = 13,728.96 : x
  2. Step 2: Convert to fraction form
    55,282.08/82,921.56 = 13,728.96/x
  3. Step 3: Cross multiply
    55,282.08x = 82,921.56 × 13,728.96
  4. Step 4: Simplify right side
    55,282.08x = 1,138,426,780.38
  5. Step 5: Solve for x
    x = 1,138,426,780.38/55,282.08
  6. Step 6: Final answer
    x = 20,593.05

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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.