Home / 27,901.75-38,473.03-21,513.89

Finding the Fourth Proportional to 27,901.75, 38,473.03 and 21,513.89

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Solution

The fourth proportional to 27,901.75, 38,473.03 and 21,513.89 is: 29,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.75 : 38,473.03 = 21,513.89 : x
  2. Step 2: Convert to fraction form
    27,901.75/38,473.03 = 21,513.89/x
  3. Step 3: Cross multiply
    27,901.75x = 38,473.03 × 21,513.89
  4. Step 4: Simplify right side
    27,901.75x = 827,704,535.39
  5. Step 5: Solve for x
    x = 827,704,535.39/27,901.75
  6. Step 6: Final answer
    x = 29,664.97

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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.