Home / 19,734.78-27,232.88-10,780.50

Finding the Fourth Proportional to 19,734.78, 27,232.88 and 10,780.50

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Solution

The fourth proportional to 19,734.78, 27,232.88 and 10,780.50 is: 14,876.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,734.78 : 27,232.88 = 10,780.50 : x
  2. Step 2: Convert to fraction form
    19,734.78/27,232.88 = 10,780.50/x
  3. Step 3: Cross multiply
    19,734.78x = 27,232.88 × 10,780.50
  4. Step 4: Simplify right side
    19,734.78x = 293,584,062.84
  5. Step 5: Solve for x
    x = 293,584,062.84/19,734.78
  6. Step 6: Final answer
    x = 14,876.48

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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.