Home / 22,619.59-31,231.22-15,083.70

Finding the Fourth Proportional to 22,619.59, 31,231.22 and 15,083.70

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Solution

The fourth proportional to 22,619.59, 31,231.22 and 15,083.70 is: 20,826.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.59 : 31,231.22 = 15,083.70 : x
  2. Step 2: Convert to fraction form
    22,619.59/31,231.22 = 15,083.70/x
  3. Step 3: Cross multiply
    22,619.59x = 31,231.22 × 15,083.70
  4. Step 4: Simplify right side
    22,619.59x = 471,082,353.11
  5. Step 5: Solve for x
    x = 471,082,353.11/22,619.59
  6. Step 6: Final answer
    x = 20,826.30

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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.