Home / 20,253.90-27,963.39-12,710.58

Finding the Fourth Proportional to 20,253.90, 27,963.39 and 12,710.58

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Solution

The fourth proportional to 20,253.90, 27,963.39 and 12,710.58 is: 17,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.90 : 27,963.39 = 12,710.58 : x
  2. Step 2: Convert to fraction form
    20,253.90/27,963.39 = 12,710.58/x
  3. Step 3: Cross multiply
    20,253.90x = 27,963.39 × 12,710.58
  4. Step 4: Simplify right side
    20,253.90x = 355,430,905.67
  5. Step 5: Solve for x
    x = 355,430,905.67/20,253.90
  6. Step 6: Final answer
    x = 17,548.76

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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.