Home / 19,639.11-27,101.96-10,686.60

Finding the Fourth Proportional to 19,639.11, 27,101.96 and 10,686.60

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Solution

The fourth proportional to 19,639.11, 27,101.96 and 10,686.60 is: 14,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.11 : 27,101.96 = 10,686.60 : x
  2. Step 2: Convert to fraction form
    19,639.11/27,101.96 = 10,686.60/x
  3. Step 3: Cross multiply
    19,639.11x = 27,101.96 × 10,686.60
  4. Step 4: Simplify right side
    19,639.11x = 289,627,792.38
  5. Step 5: Solve for x
    x = 289,627,792.38/19,639.11
  6. Step 6: Final answer
    x = 14,747.50

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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.