Home / 32,780.60-45,244.39-20,841.60

Finding the Fourth Proportional to 32,780.60, 45,244.39 and 20,841.60

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Solution

The fourth proportional to 32,780.60, 45,244.39 and 20,841.60 is: 28,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,780.60 : 45,244.39 = 20,841.60 : x
  2. Step 2: Convert to fraction form
    32,780.60/45,244.39 = 20,841.60/x
  3. Step 3: Cross multiply
    32,780.60x = 45,244.39 × 20,841.60
  4. Step 4: Simplify right side
    32,780.60x = 942,965,635.26
  5. Step 5: Solve for x
    x = 942,965,635.26/32,780.60
  6. Step 6: Final answer
    x = 28,765.97

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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.