Home / 28,108.44-38,797.76-18,555.32

Finding the Fourth Proportional to 28,108.44, 38,797.76 and 18,555.32

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Solution

The fourth proportional to 28,108.44, 38,797.76 and 18,555.32 is: 25,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.44 : 38,797.76 = 18,555.32 : x
  2. Step 2: Convert to fraction form
    28,108.44/38,797.76 = 18,555.32/x
  3. Step 3: Cross multiply
    28,108.44x = 38,797.76 × 18,555.32
  4. Step 4: Simplify right side
    28,108.44x = 719,904,852.08
  5. Step 5: Solve for x
    x = 719,904,852.08/28,108.44
  6. Step 6: Final answer
    x = 25,611.70

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Double scale
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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.