Home / 19,871.60-27,422.72-11,373.68

Finding the Fourth Proportional to 19,871.60, 27,422.72 and 11,373.68

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Solution

The fourth proportional to 19,871.60, 27,422.72 and 11,373.68 is: 15,695.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.60 : 27,422.72 = 11,373.68 : x
  2. Step 2: Convert to fraction form
    19,871.60/27,422.72 = 11,373.68/x
  3. Step 3: Cross multiply
    19,871.60x = 27,422.72 × 11,373.68
  4. Step 4: Simplify right side
    19,871.60x = 311,897,242.01
  5. Step 5: Solve for x
    x = 311,897,242.01/19,871.60
  6. Step 6: Final answer
    x = 15,695.63

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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.