Home / 22,031.26-30,389.30-13,072.42

Finding the Fourth Proportional to 22,031.26, 30,389.30 and 13,072.42

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Solution

The fourth proportional to 22,031.26, 30,389.30 and 13,072.42 is: 18,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.26 : 30,389.30 = 13,072.42 : x
  2. Step 2: Convert to fraction form
    22,031.26/30,389.30 = 13,072.42/x
  3. Step 3: Cross multiply
    22,031.26x = 30,389.30 × 13,072.42
  4. Step 4: Simplify right side
    22,031.26x = 397,261,693.11
  5. Step 5: Solve for x
    x = 397,261,693.11/22,031.26
  6. Step 6: Final answer
    x = 18,031.73

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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.