Home / 27,920.39-41,885.18-12,942.47

Finding the Fourth Proportional to 27,920.39, 41,885.18 and 12,942.47

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Solution

The fourth proportional to 27,920.39, 41,885.18 and 12,942.47 is: 19,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.39 : 41,885.18 = 12,942.47 : x
  2. Step 2: Convert to fraction form
    27,920.39/41,885.18 = 12,942.47/x
  3. Step 3: Cross multiply
    27,920.39x = 41,885.18 × 12,942.47
  4. Step 4: Simplify right side
    27,920.39x = 542,097,411.46
  5. Step 5: Solve for x
    x = 542,097,411.46/27,920.39
  6. Step 6: Final answer
    x = 19,415.83

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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.