Home / 28,961.44-39,973.58-18,872.44

Finding the Fourth Proportional to 28,961.44, 39,973.58 and 18,872.44

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Solution

The fourth proportional to 28,961.44, 39,973.58 and 18,872.44 is: 26,048.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,961.44 : 39,973.58 = 18,872.44 : x
  2. Step 2: Convert to fraction form
    28,961.44/39,973.58 = 18,872.44/x
  3. Step 3: Cross multiply
    28,961.44x = 39,973.58 × 18,872.44
  4. Step 4: Simplify right side
    28,961.44x = 754,398,990.14
  5. Step 5: Solve for x
    x = 754,398,990.14/28,961.44
  6. Step 6: Final answer
    x = 26,048.39

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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.