Home / 19,928.40-27,501.38-10,976.22

Finding the Fourth Proportional to 19,928.40, 27,501.38 and 10,976.22

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Solution

The fourth proportional to 19,928.40, 27,501.38 and 10,976.22 is: 15,147.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.40 : 27,501.38 = 10,976.22 : x
  2. Step 2: Convert to fraction form
    19,928.40/27,501.38 = 10,976.22/x
  3. Step 3: Cross multiply
    19,928.40x = 27,501.38 × 10,976.22
  4. Step 4: Simplify right side
    19,928.40x = 301,861,142.30
  5. Step 5: Solve for x
    x = 301,861,142.30/19,928.40
  6. Step 6: Final answer
    x = 15,147.28

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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.