Home / 28,306.29-42,460.38-12,723.96

Finding the Fourth Proportional to 28,306.29, 42,460.38 and 12,723.96

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Solution

The fourth proportional to 28,306.29, 42,460.38 and 12,723.96 is: 19,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.29 : 42,460.38 = 12,723.96 : x
  2. Step 2: Convert to fraction form
    28,306.29/42,460.38 = 12,723.96/x
  3. Step 3: Cross multiply
    28,306.29x = 42,460.38 × 12,723.96
  4. Step 4: Simplify right side
    28,306.29x = 540,264,176.70
  5. Step 5: Solve for x
    x = 540,264,176.70/28,306.29
  6. Step 6: Final answer
    x = 19,086.36

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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.