Home / 28,119.28-42,165.04-9,392.88

Finding the Fourth Proportional to 28,119.28, 42,165.04 and 9,392.88

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Solution

The fourth proportional to 28,119.28, 42,165.04 and 9,392.88 is: 14,084.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.28 : 42,165.04 = 9,392.88 : x
  2. Step 2: Convert to fraction form
    28,119.28/42,165.04 = 9,392.88/x
  3. Step 3: Cross multiply
    28,119.28x = 42,165.04 × 9,392.88
  4. Step 4: Simplify right side
    28,119.28x = 396,051,160.92
  5. Step 5: Solve for x
    x = 396,051,160.92/28,119.28
  6. Step 6: Final answer
    x = 14,084.68

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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.