Home / 27,624.39-38,136.11-21,561.63

Finding the Fourth Proportional to 27,624.39, 38,136.11 and 21,561.63

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Solution

The fourth proportional to 27,624.39, 38,136.11 and 21,561.63 is: 29,766.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,624.39 : 38,136.11 = 21,561.63 : x
  2. Step 2: Convert to fraction form
    27,624.39/38,136.11 = 21,561.63/x
  3. Step 3: Cross multiply
    27,624.39x = 38,136.11 × 21,561.63
  4. Step 4: Simplify right side
    27,624.39x = 822,276,585.65
  5. Step 5: Solve for x
    x = 822,276,585.65/27,624.39
  6. Step 6: Final answer
    x = 29,766.33

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Half scale
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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.