Home / 38,646.60-57,921.30-28,246.20

Finding the Fourth Proportional to 38,646.60, 57,921.30 and 28,246.20

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Solution

The fourth proportional to 38,646.60, 57,921.30 and 28,246.20 is: 42,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.60 : 57,921.30 = 28,246.20 : x
  2. Step 2: Convert to fraction form
    38,646.60/57,921.30 = 28,246.20/x
  3. Step 3: Cross multiply
    38,646.60x = 57,921.30 × 28,246.20
  4. Step 4: Simplify right side
    38,646.60x = 1,636,056,624.06
  5. Step 5: Solve for x
    x = 1,636,056,624.06/38,646.60
  6. Step 6: Final answer
    x = 42,333.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.