Home / 27,997.04-38,635.92-15,421.79

Finding the Fourth Proportional to 27,997.04, 38,635.92 and 15,421.79

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Solution

The fourth proportional to 27,997.04, 38,635.92 and 15,421.79 is: 21,282.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,997.04 : 38,635.92 = 15,421.79 : x
  2. Step 2: Convert to fraction form
    27,997.04/38,635.92 = 15,421.79/x
  3. Step 3: Cross multiply
    27,997.04x = 38,635.92 × 15,421.79
  4. Step 4: Simplify right side
    27,997.04x = 595,835,141.29
  5. Step 5: Solve for x
    x = 595,835,141.29/27,997.04
  6. Step 6: Final answer
    x = 21,282.07

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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.