Home / 28,685.88-42,998.06-13,874.42

Finding the Fourth Proportional to 28,685.88, 42,998.06 and 13,874.42

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Solution

The fourth proportional to 28,685.88, 42,998.06 and 13,874.42 is: 20,796.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.88 : 42,998.06 = 13,874.42 : x
  2. Step 2: Convert to fraction form
    28,685.88/42,998.06 = 13,874.42/x
  3. Step 3: Cross multiply
    28,685.88x = 42,998.06 × 13,874.42
  4. Step 4: Simplify right side
    28,685.88x = 596,573,207.76
  5. Step 5: Solve for x
    x = 596,573,207.76/28,685.88
  6. Step 6: Final answer
    x = 20,796.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.