Home / 38,542.99-53,189.73-21,548.18

Finding the Fourth Proportional to 38,542.99, 53,189.73 and 21,548.18

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Solution

The fourth proportional to 38,542.99, 53,189.73 and 21,548.18 is: 29,736.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,542.99 : 53,189.73 = 21,548.18 : x
  2. Step 2: Convert to fraction form
    38,542.99/53,189.73 = 21,548.18/x
  3. Step 3: Cross multiply
    38,542.99x = 53,189.73 × 21,548.18
  4. Step 4: Simplify right side
    38,542.99x = 1,146,141,768.45
  5. Step 5: Solve for x
    x = 1,146,141,768.45/38,542.99
  6. Step 6: Final answer
    x = 29,736.71

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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.