Home / 22,643.88-31,248.30-13,213.92

Finding the Fourth Proportional to 22,643.88, 31,248.30 and 13,213.92

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Solution

The fourth proportional to 22,643.88, 31,248.30 and 13,213.92 is: 18,235.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.88 : 31,248.30 = 13,213.92 : x
  2. Step 2: Convert to fraction form
    22,643.88/31,248.30 = 13,213.92/x
  3. Step 3: Cross multiply
    22,643.88x = 31,248.30 × 13,213.92
  4. Step 4: Simplify right side
    22,643.88x = 412,912,536.34
  5. Step 5: Solve for x
    x = 412,912,536.34/22,643.88
  6. Step 6: Final answer
    x = 18,235.06

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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.