Home / 19,928.39-27,502.03-11,432.91

Finding the Fourth Proportional to 19,928.39, 27,502.03 and 11,432.91

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Solution

The fourth proportional to 19,928.39, 27,502.03 and 11,432.91 is: 15,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.39 : 27,502.03 = 11,432.91 : x
  2. Step 2: Convert to fraction form
    19,928.39/27,502.03 = 11,432.91/x
  3. Step 3: Cross multiply
    19,928.39x = 27,502.03 × 11,432.91
  4. Step 4: Simplify right side
    19,928.39x = 314,428,233.81
  5. Step 5: Solve for x
    x = 314,428,233.81/19,928.39
  6. Step 6: Final answer
    x = 15,777.90

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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.