Home / 28,451.22-39,262.83-15,876.06

Finding the Fourth Proportional to 28,451.22, 39,262.83 and 15,876.06

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Solution

The fourth proportional to 28,451.22, 39,262.83 and 15,876.06 is: 21,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.22 : 39,262.83 = 15,876.06 : x
  2. Step 2: Convert to fraction form
    28,451.22/39,262.83 = 15,876.06/x
  3. Step 3: Cross multiply
    28,451.22x = 39,262.83 × 15,876.06
  4. Step 4: Simplify right side
    28,451.22x = 623,339,044.85
  5. Step 5: Solve for x
    x = 623,339,044.85/28,451.22
  6. Step 6: Final answer
    x = 21,909.04

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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.