Home / 19,811.97-27,340.47-10,859.79

Finding the Fourth Proportional to 19,811.97, 27,340.47 and 10,859.79

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Solution

The fourth proportional to 19,811.97, 27,340.47 and 10,859.79 is: 14,986.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.97 : 27,340.47 = 10,859.79 : x
  2. Step 2: Convert to fraction form
    19,811.97/27,340.47 = 10,859.79/x
  3. Step 3: Cross multiply
    19,811.97x = 27,340.47 × 10,859.79
  4. Step 4: Simplify right side
    19,811.97x = 296,911,762.70
  5. Step 5: Solve for x
    x = 296,911,762.70/19,811.97
  6. Step 6: Final answer
    x = 14,986.48

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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.