Home / 22,643.28-31,247.82-12,571.92

Finding the Fourth Proportional to 22,643.28, 31,247.82 and 12,571.92

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Solution

The fourth proportional to 22,643.28, 31,247.82 and 12,571.92 is: 17,349.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.28 : 31,247.82 = 12,571.92 : x
  2. Step 2: Convert to fraction form
    22,643.28/31,247.82 = 12,571.92/x
  3. Step 3: Cross multiply
    22,643.28x = 31,247.82 × 12,571.92
  4. Step 4: Simplify right side
    22,643.28x = 392,845,093.21
  5. Step 5: Solve for x
    x = 392,845,093.21/22,643.28
  6. Step 6: Final answer
    x = 17,349.30

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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.