Home / 21,687.23-32,508.68-12,307.44

Finding the Fourth Proportional to 21,687.23, 32,508.68 and 12,307.44

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Solution

The fourth proportional to 21,687.23, 32,508.68 and 12,307.44 is: 18,448.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.23 : 32,508.68 = 12,307.44 : x
  2. Step 2: Convert to fraction form
    21,687.23/32,508.68 = 12,307.44/x
  3. Step 3: Cross multiply
    21,687.23x = 32,508.68 × 12,307.44
  4. Step 4: Simplify right side
    21,687.23x = 400,098,628.58
  5. Step 5: Solve for x
    x = 400,098,628.58/21,687.23
  6. Step 6: Final answer
    x = 18,448.59

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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.