Home / 19,780.68-27,296.46-10,828.36

Finding the Fourth Proportional to 19,780.68, 27,296.46 and 10,828.36

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Solution

The fourth proportional to 19,780.68, 27,296.46 and 10,828.36 is: 14,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.68 : 27,296.46 = 10,828.36 : x
  2. Step 2: Convert to fraction form
    19,780.68/27,296.46 = 10,828.36/x
  3. Step 3: Cross multiply
    19,780.68x = 27,296.46 × 10,828.36
  4. Step 4: Simplify right side
    19,780.68x = 295,575,895.61
  5. Step 5: Solve for x
    x = 295,575,895.61/19,780.68
  6. Step 6: Final answer
    x = 14,942.66

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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.