Home / 22,031.30-30,403.21-11,959.74

Finding the Fourth Proportional to 22,031.30, 30,403.21 and 11,959.74

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Solution

The fourth proportional to 22,031.30, 30,403.21 and 11,959.74 is: 16,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,031.30 : 30,403.21 = 11,959.74 : x
  2. Step 2: Convert to fraction form
    22,031.30/30,403.21 = 11,959.74/x
  3. Step 3: Cross multiply
    22,031.30x = 30,403.21 × 11,959.74
  4. Step 4: Simplify right side
    22,031.30x = 363,614,274.95
  5. Step 5: Solve for x
    x = 363,614,274.95/22,031.30
  6. Step 6: Final answer
    x = 16,504.44

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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.