Home / 19,823.76-27,357.48-10,871.28

Finding the Fourth Proportional to 19,823.76, 27,357.48 and 10,871.28

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Solution

The fourth proportional to 19,823.76, 27,357.48 and 10,871.28 is: 15,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.76 : 27,357.48 = 10,871.28 : x
  2. Step 2: Convert to fraction form
    19,823.76/27,357.48 = 10,871.28/x
  3. Step 3: Cross multiply
    19,823.76x = 27,357.48 × 10,871.28
  4. Step 4: Simplify right side
    19,823.76x = 297,410,825.17
  5. Step 5: Solve for x
    x = 297,410,825.17/19,823.76
  6. Step 6: Final answer
    x = 15,002.75

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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.