Home / 19,730.39-27,227.84-10,777.79

Finding the Fourth Proportional to 19,730.39, 27,227.84 and 10,777.79

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Solution

The fourth proportional to 19,730.39, 27,227.84 and 10,777.79 is: 14,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,730.39 : 27,227.84 = 10,777.79 : x
  2. Step 2: Convert to fraction form
    19,730.39/27,227.84 = 10,777.79/x
  3. Step 3: Cross multiply
    19,730.39x = 27,227.84 × 10,777.79
  4. Step 4: Simplify right side
    19,730.39x = 293,455,887.78
  5. Step 5: Solve for x
    x = 293,455,887.78/19,730.39
  6. Step 6: Final answer
    x = 14,873.29

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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.