Home / 19,660.87-27,131.84-10,708.36

Finding the Fourth Proportional to 19,660.87, 27,131.84 and 10,708.36

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Solution

The fourth proportional to 19,660.87, 27,131.84 and 10,708.36 is: 14,777.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.87 : 27,131.84 = 10,708.36 : x
  2. Step 2: Convert to fraction form
    19,660.87/27,131.84 = 10,708.36/x
  3. Step 3: Cross multiply
    19,660.87x = 27,131.84 × 10,708.36
  4. Step 4: Simplify right side
    19,660.87x = 290,537,510.18
  5. Step 5: Solve for x
    x = 290,537,510.18/19,660.87
  6. Step 6: Final answer
    x = 14,777.45

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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.