Home / 23,122.13-31,908.53-12,511.83

Finding the Fourth Proportional to 23,122.13, 31,908.53 and 12,511.83

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Solution

The fourth proportional to 23,122.13, 31,908.53 and 12,511.83 is: 17,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,122.13 : 31,908.53 = 12,511.83 : x
  2. Step 2: Convert to fraction form
    23,122.13/31,908.53 = 12,511.83/x
  3. Step 3: Cross multiply
    23,122.13x = 31,908.53 × 12,511.83
  4. Step 4: Simplify right side
    23,122.13x = 399,234,253.85
  5. Step 5: Solve for x
    x = 399,234,253.85/23,122.13
  6. Step 6: Final answer
    x = 17,266.33

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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.