Home / 22,822.45-31,491.86-12,749.65

Finding the Fourth Proportional to 22,822.45, 31,491.86 and 12,749.65

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Solution

The fourth proportional to 22,822.45, 31,491.86 and 12,749.65 is: 17,592.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,822.45 : 31,491.86 = 12,749.65 : x
  2. Step 2: Convert to fraction form
    22,822.45/31,491.86 = 12,749.65/x
  3. Step 3: Cross multiply
    22,822.45x = 31,491.86 × 12,749.65
  4. Step 4: Simplify right side
    22,822.45x = 401,510,192.85
  5. Step 5: Solve for x
    x = 401,510,192.85/22,822.45
  6. Step 6: Final answer
    x = 17,592.77

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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.