Home / 21,225.03-29,293.82-15,276.39

Finding the Fourth Proportional to 21,225.03, 29,293.82 and 15,276.39

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Solution

The fourth proportional to 21,225.03, 29,293.82 and 15,276.39 is: 21,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.03 : 29,293.82 = 15,276.39 : x
  2. Step 2: Convert to fraction form
    21,225.03/29,293.82 = 15,276.39/x
  3. Step 3: Cross multiply
    21,225.03x = 29,293.82 × 15,276.39
  4. Step 4: Simplify right side
    21,225.03x = 447,503,818.91
  5. Step 5: Solve for x
    x = 447,503,818.91/21,225.03
  6. Step 6: Final answer
    x = 21,083.78

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Double scale
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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.