Home / 19,812.10-27,340.59-10,859.98

Finding the Fourth Proportional to 19,812.10, 27,340.59 and 10,859.98

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Solution

The fourth proportional to 19,812.10, 27,340.59 and 10,859.98 is: 14,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.10 : 27,340.59 = 10,859.98 : x
  2. Step 2: Convert to fraction form
    19,812.10/27,340.59 = 10,859.98/x
  3. Step 3: Cross multiply
    19,812.10x = 27,340.59 × 10,859.98
  4. Step 4: Simplify right side
    19,812.10x = 296,918,260.59
  5. Step 5: Solve for x
    x = 296,918,260.59/19,812.10
  6. Step 6: Final answer
    x = 14,986.71

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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.