Home / 21,714.05-32,625.75-13,820.20

Finding the Fourth Proportional to 21,714.05, 32,625.75 and 13,820.20

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Solution

The fourth proportional to 21,714.05, 32,625.75 and 13,820.20 is: 20,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,714.05 : 32,625.75 = 13,820.20 : x
  2. Step 2: Convert to fraction form
    21,714.05/32,625.75 = 13,820.20/x
  3. Step 3: Cross multiply
    21,714.05x = 32,625.75 × 13,820.20
  4. Step 4: Simplify right side
    21,714.05x = 450,894,227.02
  5. Step 5: Solve for x
    x = 450,894,227.02/21,714.05
  6. Step 6: Final answer
    x = 20,765.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.