Home / 19,811.62-27,340.72-10,859.11

Finding the Fourth Proportional to 19,811.62, 27,340.72 and 10,859.11

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Solution

The fourth proportional to 19,811.62, 27,340.72 and 10,859.11 is: 14,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.62 : 27,340.72 = 10,859.11 : x
  2. Step 2: Convert to fraction form
    19,811.62/27,340.72 = 10,859.11/x
  3. Step 3: Cross multiply
    19,811.62x = 27,340.72 × 10,859.11
  4. Step 4: Simplify right side
    19,811.62x = 296,896,005.33
  5. Step 5: Solve for x
    x = 296,896,005.33/19,811.62
  6. Step 6: Final answer
    x = 14,985.95

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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.