Home / 38,443.12-57,664.88-12,147.96

Finding the Fourth Proportional to 38,443.12, 57,664.88 and 12,147.96

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Solution

The fourth proportional to 38,443.12, 57,664.88 and 12,147.96 is: 18,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.12 : 57,664.88 = 12,147.96 : x
  2. Step 2: Convert to fraction form
    38,443.12/57,664.88 = 12,147.96/x
  3. Step 3: Cross multiply
    38,443.12x = 57,664.88 × 12,147.96
  4. Step 4: Simplify right side
    38,443.12x = 700,510,655.64
  5. Step 5: Solve for x
    x = 700,510,655.64/38,443.12
  6. Step 6: Final answer
    x = 18,222.00

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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.