Home / 22,031.54-30,400.29-13,079.42

Finding the Fourth Proportional to 22,031.54, 30,400.29 and 13,079.42

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Solution

The fourth proportional to 22,031.54, 30,400.29 and 13,079.42 is: 18,047.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.54 : 30,400.29 = 13,079.42 : x
  2. Step 2: Convert to fraction form
    22,031.54/30,400.29 = 13,079.42/x
  3. Step 3: Cross multiply
    22,031.54x = 30,400.29 × 13,079.42
  4. Step 4: Simplify right side
    22,031.54x = 397,618,161.03
  5. Step 5: Solve for x
    x = 397,618,161.03/22,031.54
  6. Step 6: Final answer
    x = 18,047.68

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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.