Home / 21,031.20-29,053.44-16,375.68

Finding the Fourth Proportional to 21,031.20, 29,053.44 and 16,375.68

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Solution

The fourth proportional to 21,031.20, 29,053.44 and 16,375.68 is: 22,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.20 : 29,053.44 = 16,375.68 : x
  2. Step 2: Convert to fraction form
    21,031.20/29,053.44 = 16,375.68/x
  3. Step 3: Cross multiply
    21,031.20x = 29,053.44 × 16,375.68
  4. Step 4: Simplify right side
    21,031.20x = 475,769,836.34
  5. Step 5: Solve for x
    x = 475,769,836.34/21,031.20
  6. Step 6: Final answer
    x = 22,622.10

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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.