Home / 22,711.58-31,339.37-13,151.65

Finding the Fourth Proportional to 22,711.58, 31,339.37 and 13,151.65

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Solution

The fourth proportional to 22,711.58, 31,339.37 and 13,151.65 is: 18,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,711.58 : 31,339.37 = 13,151.65 : x
  2. Step 2: Convert to fraction form
    22,711.58/31,339.37 = 13,151.65/x
  3. Step 3: Cross multiply
    22,711.58x = 31,339.37 × 13,151.65
  4. Step 4: Simplify right side
    22,711.58x = 412,164,425.46
  5. Step 5: Solve for x
    x = 412,164,425.46/22,711.58
  6. Step 6: Final answer
    x = 18,147.77

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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.