Home / 22,403.22-30,912.59-13,455.65

Finding the Fourth Proportional to 22,403.22, 30,912.59 and 13,455.65

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Solution

The fourth proportional to 22,403.22, 30,912.59 and 13,455.65 is: 18,566.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.22 : 30,912.59 = 13,455.65 : x
  2. Step 2: Convert to fraction form
    22,403.22/30,912.59 = 13,455.65/x
  3. Step 3: Cross multiply
    22,403.22x = 30,912.59 × 13,455.65
  4. Step 4: Simplify right side
    22,403.22x = 415,948,769.79
  5. Step 5: Solve for x
    x = 415,948,769.79/22,403.22
  6. Step 6: Final answer
    x = 18,566.47

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Double scale
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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.