Home / 38,511.56-57,719.61-21,821.00

Finding the Fourth Proportional to 38,511.56, 57,719.61 and 21,821.00

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Solution

The fourth proportional to 38,511.56, 57,719.61 and 21,821.00 is: 32,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.56 : 57,719.61 = 21,821.00 : x
  2. Step 2: Convert to fraction form
    38,511.56/57,719.61 = 21,821.00/x
  3. Step 3: Cross multiply
    38,511.56x = 57,719.61 × 21,821.00
  4. Step 4: Simplify right side
    38,511.56x = 1,259,499,321.21
  5. Step 5: Solve for x
    x = 1,259,499,321.21/38,511.56
  6. Step 6: Final answer
    x = 32,704.45

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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.