Home / 22,822.13-31,490.69-12,750.65

Finding the Fourth Proportional to 22,822.13, 31,490.69 and 12,750.65

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Solution

The fourth proportional to 22,822.13, 31,490.69 and 12,750.65 is: 17,593.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,822.13 : 31,490.69 = 12,750.65 : x
  2. Step 2: Convert to fraction form
    22,822.13/31,490.69 = 12,750.65/x
  3. Step 3: Cross multiply
    22,822.13x = 31,490.69 × 12,750.65
  4. Step 4: Simplify right side
    22,822.13x = 401,526,766.45
  5. Step 5: Solve for x
    x = 401,526,766.45/22,822.13
  6. Step 6: Final answer
    x = 17,593.75

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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.