Home / 27,832.14-38,400.48-21,845.30

Finding the Fourth Proportional to 27,832.14, 38,400.48 and 21,845.30

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Solution

The fourth proportional to 27,832.14, 38,400.48 and 21,845.30 is: 30,140.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,832.14 : 38,400.48 = 21,845.30 : x
  2. Step 2: Convert to fraction form
    27,832.14/38,400.48 = 21,845.30/x
  3. Step 3: Cross multiply
    27,832.14x = 38,400.48 × 21,845.30
  4. Step 4: Simplify right side
    27,832.14x = 838,869,813.74
  5. Step 5: Solve for x
    x = 838,869,813.74/27,832.14
  6. Step 6: Final answer
    x = 30,140.33

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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.