Home / 27,902.28-38,505.12-15,327.84

Finding the Fourth Proportional to 27,902.28, 38,505.12 and 15,327.84

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Solution

The fourth proportional to 27,902.28, 38,505.12 and 15,327.84 is: 21,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,902.28 : 38,505.12 = 15,327.84 : x
  2. Step 2: Convert to fraction form
    27,902.28/38,505.12 = 15,327.84/x
  3. Step 3: Cross multiply
    27,902.28x = 38,505.12 × 15,327.84
  4. Step 4: Simplify right side
    27,902.28x = 590,200,318.54
  5. Step 5: Solve for x
    x = 590,200,318.54/27,902.28
  6. Step 6: Final answer
    x = 21,152.40

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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.