Home / 38,655.11-57,990.94-12,000.51

Finding the Fourth Proportional to 38,655.11, 57,990.94 and 12,000.51

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Solution

The fourth proportional to 38,655.11, 57,990.94 and 12,000.51 is: 18,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.11 : 57,990.94 = 12,000.51 : x
  2. Step 2: Convert to fraction form
    38,655.11/57,990.94 = 12,000.51/x
  3. Step 3: Cross multiply
    38,655.11x = 57,990.94 × 12,000.51
  4. Step 4: Simplify right side
    38,655.11x = 695,920,855.38
  5. Step 5: Solve for x
    x = 695,920,855.38/38,655.11
  6. Step 6: Final answer
    x = 18,003.33

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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.