Home / 19,928.90-27,502.06-10,976.71

Finding the Fourth Proportional to 19,928.90, 27,502.06 and 10,976.71

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Solution

The fourth proportional to 19,928.90, 27,502.06 and 10,976.71 is: 15,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.90 : 27,502.06 = 10,976.71 : x
  2. Step 2: Convert to fraction form
    19,928.90/27,502.06 = 10,976.71/x
  3. Step 3: Cross multiply
    19,928.90x = 27,502.06 × 10,976.71
  4. Step 4: Simplify right side
    19,928.90x = 301,882,137.02
  5. Step 5: Solve for x
    x = 301,882,137.02/19,928.90
  6. Step 6: Final answer
    x = 15,147.96

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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.