Home / 19,769.88-27,292.36-15,283.48

Finding the Fourth Proportional to 19,769.88, 27,292.36 and 15,283.48

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Solution

The fourth proportional to 19,769.88, 27,292.36 and 15,283.48 is: 21,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,769.88 : 27,292.36 = 15,283.48 : x
  2. Step 2: Convert to fraction form
    19,769.88/27,292.36 = 15,283.48/x
  3. Step 3: Cross multiply
    19,769.88x = 27,292.36 × 15,283.48
  4. Step 4: Simplify right side
    19,769.88x = 417,122,238.21
  5. Step 5: Solve for x
    x = 417,122,238.21/19,769.88
  6. Step 6: Final answer
    x = 21,098.88

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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.