Home / 20,156.94-27,818.31-11,206.17

Finding the Fourth Proportional to 20,156.94, 27,818.31 and 11,206.17

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Solution

The fourth proportional to 20,156.94, 27,818.31 and 11,206.17 is: 15,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.94 : 27,818.31 = 11,206.17 : x
  2. Step 2: Convert to fraction form
    20,156.94/27,818.31 = 11,206.17/x
  3. Step 3: Cross multiply
    20,156.94x = 27,818.31 × 11,206.17
  4. Step 4: Simplify right side
    20,156.94x = 311,736,710.97
  5. Step 5: Solve for x
    x = 311,736,710.97/20,156.94
  6. Step 6: Final answer
    x = 15,465.48

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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.