Home / 19,811.49-27,340.05-10,859.17

Finding the Fourth Proportional to 19,811.49, 27,340.05 and 10,859.17

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Solution

The fourth proportional to 19,811.49, 27,340.05 and 10,859.17 is: 14,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.49 : 27,340.05 = 10,859.17 : x
  2. Step 2: Convert to fraction form
    19,811.49/27,340.05 = 10,859.17/x
  3. Step 3: Cross multiply
    19,811.49x = 27,340.05 × 10,859.17
  4. Step 4: Simplify right side
    19,811.49x = 296,890,213.31
  5. Step 5: Solve for x
    x = 296,890,213.31/19,811.49
  6. Step 6: Final answer
    x = 14,985.76

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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.