Home / 19,838.28-27,382.62-11,345.19

Finding the Fourth Proportional to 19,838.28, 27,382.62 and 11,345.19

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Solution

The fourth proportional to 19,838.28, 27,382.62 and 11,345.19 is: 15,659.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,838.28 : 27,382.62 = 11,345.19 : x
  2. Step 2: Convert to fraction form
    19,838.28/27,382.62 = 11,345.19/x
  3. Step 3: Cross multiply
    19,838.28x = 27,382.62 × 11,345.19
  4. Step 4: Simplify right side
    19,838.28x = 310,661,026.60
  5. Step 5: Solve for x
    x = 310,661,026.60/19,838.28
  6. Step 6: Final answer
    x = 15,659.68

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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.