Home / 38,496.03-53,123.44-21,499.78

Finding the Fourth Proportional to 38,496.03, 53,123.44 and 21,499.78

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Solution

The fourth proportional to 38,496.03, 53,123.44 and 21,499.78 is: 29,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,496.03 : 53,123.44 = 21,499.78 : x
  2. Step 2: Convert to fraction form
    38,496.03/53,123.44 = 21,499.78/x
  3. Step 3: Cross multiply
    38,496.03x = 53,123.44 × 21,499.78
  4. Step 4: Simplify right side
    38,496.03x = 1,142,142,272.84
  5. Step 5: Solve for x
    x = 1,142,142,272.84/38,496.03
  6. Step 6: Final answer
    x = 29,669.09

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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.