Home / 21,266.25-31,888.98-12,841.44

Finding the Fourth Proportional to 21,266.25, 31,888.98 and 12,841.44

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Solution

The fourth proportional to 21,266.25, 31,888.98 and 12,841.44 is: 19,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.25 : 31,888.98 = 12,841.44 : x
  2. Step 2: Convert to fraction form
    21,266.25/31,888.98 = 12,841.44/x
  3. Step 3: Cross multiply
    21,266.25x = 31,888.98 × 12,841.44
  4. Step 4: Simplify right side
    21,266.25x = 409,500,423.33
  5. Step 5: Solve for x
    x = 409,500,423.33/21,266.25
  6. Step 6: Final answer
    x = 19,255.88

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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.