Home / 19,639.19-27,101.54-10,686.49

Finding the Fourth Proportional to 19,639.19, 27,101.54 and 10,686.49

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Solution

The fourth proportional to 19,639.19, 27,101.54 and 10,686.49 is: 14,747.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.19 : 27,101.54 = 10,686.49 : x
  2. Step 2: Convert to fraction form
    19,639.19/27,101.54 = 10,686.49/x
  3. Step 3: Cross multiply
    19,639.19x = 27,101.54 × 10,686.49
  4. Step 4: Simplify right side
    19,639.19x = 289,620,295.16
  5. Step 5: Solve for x
    x = 289,620,295.16/19,639.19
  6. Step 6: Final answer
    x = 14,747.06

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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.