Home / 19,879.47-27,434.39-10,927.65

Finding the Fourth Proportional to 19,879.47, 27,434.39 and 10,927.65

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Solution

The fourth proportional to 19,879.47, 27,434.39 and 10,927.65 is: 15,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.47 : 27,434.39 = 10,927.65 : x
  2. Step 2: Convert to fraction form
    19,879.47/27,434.39 = 10,927.65/x
  3. Step 3: Cross multiply
    19,879.47x = 27,434.39 × 10,927.65
  4. Step 4: Simplify right side
    19,879.47x = 299,793,357.25
  5. Step 5: Solve for x
    x = 299,793,357.25/19,879.47
  6. Step 6: Final answer
    x = 15,080.55

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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.