Home / 28,108.82-38,724.30-19,595.47

Finding the Fourth Proportional to 28,108.82, 38,724.30 and 19,595.47

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Solution

The fourth proportional to 28,108.82, 38,724.30 and 19,595.47 is: 26,995.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.82 : 38,724.30 = 19,595.47 : x
  2. Step 2: Convert to fraction form
    28,108.82/38,724.30 = 19,595.47/x
  3. Step 3: Cross multiply
    28,108.82x = 38,724.30 × 19,595.47
  4. Step 4: Simplify right side
    28,108.82x = 758,820,858.92
  5. Step 5: Solve for x
    x = 758,820,858.92/28,108.82
  6. Step 6: Final answer
    x = 26,995.83

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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.