Home / 22,312.66-30,791.76-12,240.45

Finding the Fourth Proportional to 22,312.66, 30,791.76 and 12,240.45

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Solution

The fourth proportional to 22,312.66, 30,791.76 and 12,240.45 is: 16,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.66 : 30,791.76 = 12,240.45 : x
  2. Step 2: Convert to fraction form
    22,312.66/30,791.76 = 12,240.45/x
  3. Step 3: Cross multiply
    22,312.66x = 30,791.76 × 12,240.45
  4. Step 4: Simplify right side
    22,312.66x = 376,904,998.69
  5. Step 5: Solve for x
    x = 376,904,998.69/22,312.66
  6. Step 6: Final answer
    x = 16,891.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.