Home / 19,639.17-27,102.24-10,686.78

Finding the Fourth Proportional to 19,639.17, 27,102.24 and 10,686.78

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Solution

The fourth proportional to 19,639.17, 27,102.24 and 10,686.78 is: 14,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.17 : 27,102.24 = 10,686.78 : x
  2. Step 2: Convert to fraction form
    19,639.17/27,102.24 = 10,686.78/x
  3. Step 3: Cross multiply
    19,639.17x = 27,102.24 × 10,686.78
  4. Step 4: Simplify right side
    19,639.17x = 289,635,676.39
  5. Step 5: Solve for x
    x = 289,635,676.39/19,639.17
  6. Step 6: Final answer
    x = 14,747.86

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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.