Home / 27,781.24-38,337.18-15,848.44

Finding the Fourth Proportional to 27,781.24, 38,337.18 and 15,848.44

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Solution

The fourth proportional to 27,781.24, 38,337.18 and 15,848.44 is: 21,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.24 : 38,337.18 = 15,848.44 : x
  2. Step 2: Convert to fraction form
    27,781.24/38,337.18 = 15,848.44/x
  3. Step 3: Cross multiply
    27,781.24x = 38,337.18 × 15,848.44
  4. Step 4: Simplify right side
    27,781.24x = 607,584,497.00
  5. Step 5: Solve for x
    x = 607,584,497.00/27,781.24
  6. Step 6: Final answer
    x = 21,870.32

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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.