Home / 28,452.21-39,264.04-15,876.96

Finding the Fourth Proportional to 28,452.21, 39,264.04 and 15,876.96

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Solution

The fourth proportional to 28,452.21, 39,264.04 and 15,876.96 is: 21,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.21 : 39,264.04 = 15,876.96 : x
  2. Step 2: Convert to fraction form
    28,452.21/39,264.04 = 15,876.96/x
  3. Step 3: Cross multiply
    28,452.21x = 39,264.04 × 15,876.96
  4. Step 4: Simplify right side
    28,452.21x = 623,393,685.98
  5. Step 5: Solve for x
    x = 623,393,685.98/28,452.21
  6. Step 6: Final answer
    x = 21,910.20

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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.