Home / 38,383.70-52,968.53-21,388.02

Finding the Fourth Proportional to 38,383.70, 52,968.53 and 21,388.02

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Solution

The fourth proportional to 38,383.70, 52,968.53 and 21,388.02 is: 29,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,383.70 : 52,968.53 = 21,388.02 : x
  2. Step 2: Convert to fraction form
    38,383.70/52,968.53 = 21,388.02/x
  3. Step 3: Cross multiply
    38,383.70x = 52,968.53 × 21,388.02
  4. Step 4: Simplify right side
    38,383.70x = 1,132,891,979.01
  5. Step 5: Solve for x
    x = 1,132,891,979.01/38,383.70
  6. Step 6: Final answer
    x = 29,514.92

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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.