Home / 19,133.28-26,380.08-15,789.60

Finding the Fourth Proportional to 19,133.28, 26,380.08 and 15,789.60

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Solution

The fourth proportional to 19,133.28, 26,380.08 and 15,789.60 is: 21,769.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,133.28 : 26,380.08 = 15,789.60 : x
  2. Step 2: Convert to fraction form
    19,133.28/26,380.08 = 15,789.60/x
  3. Step 3: Cross multiply
    19,133.28x = 26,380.08 × 15,789.60
  4. Step 4: Simplify right side
    19,133.28x = 416,530,911.17
  5. Step 5: Solve for x
    x = 416,530,911.17/19,133.28
  6. Step 6: Final answer
    x = 21,769.97

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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.