Home / 28,854.96-39,819.78-16,279.62

Finding the Fourth Proportional to 28,854.96, 39,819.78 and 16,279.62

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Solution

The fourth proportional to 28,854.96, 39,819.78 and 16,279.62 is: 22,465.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.96 : 39,819.78 = 16,279.62 : x
  2. Step 2: Convert to fraction form
    28,854.96/39,819.78 = 16,279.62/x
  3. Step 3: Cross multiply
    28,854.96x = 39,819.78 × 16,279.62
  4. Step 4: Simplify right side
    28,854.96x = 648,250,886.88
  5. Step 5: Solve for x
    x = 648,250,886.88/28,854.96
  6. Step 6: Final answer
    x = 22,465.84

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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.