Home / 19,859.86-27,406.92-10,908.19

Finding the Fourth Proportional to 19,859.86, 27,406.92 and 10,908.19

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Solution

The fourth proportional to 19,859.86, 27,406.92 and 10,908.19 is: 15,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.86 : 27,406.92 = 10,908.19 : x
  2. Step 2: Convert to fraction form
    19,859.86/27,406.92 = 10,908.19/x
  3. Step 3: Cross multiply
    19,859.86x = 27,406.92 × 10,908.19
  4. Step 4: Simplify right side
    19,859.86x = 298,959,890.67
  5. Step 5: Solve for x
    x = 298,959,890.67/19,859.86
  6. Step 6: Final answer
    x = 15,053.47

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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.