Home / 38,743.13-53,471.10-21,519.42

Finding the Fourth Proportional to 38,743.13, 53,471.10 and 21,519.42

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Solution

The fourth proportional to 38,743.13, 53,471.10 and 21,519.42 is: 29,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,743.13 : 53,471.10 = 21,519.42 : x
  2. Step 2: Convert to fraction form
    38,743.13/53,471.10 = 21,519.42/x
  3. Step 3: Cross multiply
    38,743.13x = 53,471.10 × 21,519.42
  4. Step 4: Simplify right side
    38,743.13x = 1,150,667,058.76
  5. Step 5: Solve for x
    x = 1,150,667,058.76/38,743.13
  6. Step 6: Final answer
    x = 29,699.90

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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.