Home / 20,160.52-27,818.46-11,208.10

Finding the Fourth Proportional to 20,160.52, 27,818.46 and 11,208.10

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Solution

The fourth proportional to 20,160.52, 27,818.46 and 11,208.10 is: 15,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.52 : 27,818.46 = 11,208.10 : x
  2. Step 2: Convert to fraction form
    20,160.52/27,818.46 = 11,208.10/x
  3. Step 3: Cross multiply
    20,160.52x = 27,818.46 × 11,208.10
  4. Step 4: Simplify right side
    20,160.52x = 311,792,081.53
  5. Step 5: Solve for x
    x = 311,792,081.53/20,160.52
  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.