Home / 28,443.33-42,673.19-8,724.78

Finding the Fourth Proportional to 28,443.33, 42,673.19 and 8,724.78

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Solution

The fourth proportional to 28,443.33, 42,673.19 and 8,724.78 is: 13,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.33 : 42,673.19 = 8,724.78 : x
  2. Step 2: Convert to fraction form
    28,443.33/42,673.19 = 8,724.78/x
  3. Step 3: Cross multiply
    28,443.33x = 42,673.19 × 8,724.78
  4. Step 4: Simplify right side
    28,443.33x = 372,314,151.02
  5. Step 5: Solve for x
    x = 372,314,151.02/28,443.33
  6. Step 6: Final answer
    x = 13,089.68

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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.