Home / 20,086.80-27,702.32-15,062.32

Finding the Fourth Proportional to 20,086.80, 27,702.32 and 15,062.32

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Solution

The fourth proportional to 20,086.80, 27,702.32 and 15,062.32 is: 20,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.80 : 27,702.32 = 15,062.32 : x
  2. Step 2: Convert to fraction form
    20,086.80/27,702.32 = 15,062.32/x
  3. Step 3: Cross multiply
    20,086.80x = 27,702.32 × 15,062.32
  4. Step 4: Simplify right side
    20,086.80x = 417,261,208.58
  5. Step 5: Solve for x
    x = 417,261,208.58/20,086.80
  6. Step 6: Final answer
    x = 20,772.91

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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.