Home / 28,179.68-42,257.64-11,528.24

Finding the Fourth Proportional to 28,179.68, 42,257.64 and 11,528.24

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Solution

The fourth proportional to 28,179.68, 42,257.64 and 11,528.24 is: 17,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.68 : 42,257.64 = 11,528.24 : x
  2. Step 2: Convert to fraction form
    28,179.68/42,257.64 = 11,528.24/x
  3. Step 3: Cross multiply
    28,179.68x = 42,257.64 × 11,528.24
  4. Step 4: Simplify right side
    28,179.68x = 487,156,215.75
  5. Step 5: Solve for x
    x = 487,156,215.75/28,179.68
  6. Step 6: Final answer
    x = 17,287.50

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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.