Home / 22,490.56-31,031.26-12,799.99

Finding the Fourth Proportional to 22,490.56, 31,031.26 and 12,799.99

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Solution

The fourth proportional to 22,490.56, 31,031.26 and 12,799.99 is: 17,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.56 : 31,031.26 = 12,799.99 : x
  2. Step 2: Convert to fraction form
    22,490.56/31,031.26 = 12,799.99/x
  3. Step 3: Cross multiply
    22,490.56x = 31,031.26 × 12,799.99
  4. Step 4: Simplify right side
    22,490.56x = 397,199,817.69
  5. Step 5: Solve for x
    x = 397,199,817.69/22,490.56
  6. Step 6: Final answer
    x = 17,660.73

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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.