Home / 19,785.78-27,304.70-10,833.13

Finding the Fourth Proportional to 19,785.78, 27,304.70 and 10,833.13

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Solution

The fourth proportional to 19,785.78, 27,304.70 and 10,833.13 is: 14,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.78 : 27,304.70 = 10,833.13 : x
  2. Step 2: Convert to fraction form
    19,785.78/27,304.70 = 10,833.13/x
  3. Step 3: Cross multiply
    19,785.78x = 27,304.70 × 10,833.13
  4. Step 4: Simplify right side
    19,785.78x = 295,795,364.71
  5. Step 5: Solve for x
    x = 295,795,364.71/19,785.78
  6. Step 6: Final answer
    x = 14,949.90

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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.