Home / 20,251.45-27,964.17-12,710.35

Finding the Fourth Proportional to 20,251.45, 27,964.17 and 12,710.35

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Solution

The fourth proportional to 20,251.45, 27,964.17 and 12,710.35 is: 17,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.45 : 27,964.17 = 12,710.35 : x
  2. Step 2: Convert to fraction form
    20,251.45/27,964.17 = 12,710.35/x
  3. Step 3: Cross multiply
    20,251.45x = 27,964.17 × 12,710.35
  4. Step 4: Simplify right side
    20,251.45x = 355,434,388.16
  5. Step 5: Solve for x
    x = 355,434,388.16/20,251.45
  6. Step 6: Final answer
    x = 17,551.06

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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.