Home / 38,520.30-57,788.55-21,866.70

Finding the Fourth Proportional to 38,520.30, 57,788.55 and 21,866.70

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Solution

The fourth proportional to 38,520.30, 57,788.55 and 21,866.70 is: 32,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.30 : 57,788.55 = 21,866.70 : x
  2. Step 2: Convert to fraction form
    38,520.30/57,788.55 = 21,866.70/x
  3. Step 3: Cross multiply
    38,520.30x = 57,788.55 × 21,866.70
  4. Step 4: Simplify right side
    38,520.30x = 1,263,644,886.29
  5. Step 5: Solve for x
    x = 1,263,644,886.29/38,520.30
  6. Step 6: Final answer
    x = 32,804.65

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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.