Home / 20,260.92-27,972.91-13,898.17

Finding the Fourth Proportional to 20,260.92, 27,972.91 and 13,898.17

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Solution

The fourth proportional to 20,260.92, 27,972.91 and 13,898.17 is: 19,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.92 : 27,972.91 = 13,898.17 : x
  2. Step 2: Convert to fraction form
    20,260.92/27,972.91 = 13,898.17/x
  3. Step 3: Cross multiply
    20,260.92x = 27,972.91 × 13,898.17
  4. Step 4: Simplify right side
    20,260.92x = 388,772,258.57
  5. Step 5: Solve for x
    x = 388,772,258.57/20,260.92
  6. Step 6: Final answer
    x = 19,188.28

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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.