Home / 19,780.06-27,296.51-10,828.13

Finding the Fourth Proportional to 19,780.06, 27,296.51 and 10,828.13

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Solution

The fourth proportional to 19,780.06, 27,296.51 and 10,828.13 is: 14,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.06 : 27,296.51 = 10,828.13 : x
  2. Step 2: Convert to fraction form
    19,780.06/27,296.51 = 10,828.13/x
  3. Step 3: Cross multiply
    19,780.06x = 27,296.51 × 10,828.13
  4. Step 4: Simplify right side
    19,780.06x = 295,570,158.83
  5. Step 5: Solve for x
    x = 295,570,158.83/19,780.06
  6. Step 6: Final answer
    x = 14,942.83

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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.