Home / 21,900.12-32,857.74-12,026.76

Finding the Fourth Proportional to 21,900.12, 32,857.74 and 12,026.76

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Solution

The fourth proportional to 21,900.12, 32,857.74 and 12,026.76 is: 18,044.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900.12 : 32,857.74 = 12,026.76 : x
  2. Step 2: Convert to fraction form
    21,900.12/32,857.74 = 12,026.76/x
  3. Step 3: Cross multiply
    21,900.12x = 32,857.74 × 12,026.76
  4. Step 4: Simplify right side
    21,900.12x = 395,172,153.12
  5. Step 5: Solve for x
    x = 395,172,153.12/21,900.12
  6. Step 6: Final answer
    x = 18,044.29

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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.