Home / 38,605.28-53,273.36-21,609.12

Finding the Fourth Proportional to 38,605.28, 53,273.36 and 21,609.12

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Solution

The fourth proportional to 38,605.28, 53,273.36 and 21,609.12 is: 29,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605.28 : 53,273.36 = 21,609.12 : x
  2. Step 2: Convert to fraction form
    38,605.28/53,273.36 = 21,609.12/x
  3. Step 3: Cross multiply
    38,605.28x = 53,273.36 × 21,609.12
  4. Step 4: Simplify right side
    38,605.28x = 1,151,190,429.04
  5. Step 5: Solve for x
    x = 1,151,190,429.04/38,605.28
  6. Step 6: Final answer
    x = 29,819.51

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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.