Home / 28,183.88-42,275.88-8,462.36

Finding the Fourth Proportional to 28,183.88, 42,275.88 and 8,462.36

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Solution

The fourth proportional to 28,183.88, 42,275.88 and 8,462.36 is: 12,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.88 : 42,275.88 = 8,462.36 : x
  2. Step 2: Convert to fraction form
    28,183.88/42,275.88 = 8,462.36/x
  3. Step 3: Cross multiply
    28,183.88x = 42,275.88 × 8,462.36
  4. Step 4: Simplify right side
    28,183.88x = 357,753,715.88
  5. Step 5: Solve for x
    x = 357,753,715.88/28,183.88
  6. Step 6: Final answer
    x = 12,693.56

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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.