Home / 28,979.73-40,011.23-22,253.29

Finding the Fourth Proportional to 28,979.73, 40,011.23 and 22,253.29

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Solution

The fourth proportional to 28,979.73, 40,011.23 and 22,253.29 is: 30,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.73 : 40,011.23 = 22,253.29 : x
  2. Step 2: Convert to fraction form
    28,979.73/40,011.23 = 22,253.29/x
  3. Step 3: Cross multiply
    28,979.73x = 40,011.23 × 22,253.29
  4. Step 4: Simplify right side
    28,979.73x = 890,381,504.45
  5. Step 5: Solve for x
    x = 890,381,504.45/28,979.73
  6. Step 6: Final answer
    x = 30,724.29

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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.