Home / 20,341.88-28,070.38-13,626.42

Finding the Fourth Proportional to 20,341.88, 28,070.38 and 13,626.42

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Solution

The fourth proportional to 20,341.88, 28,070.38 and 13,626.42 is: 18,803.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.88 : 28,070.38 = 13,626.42 : x
  2. Step 2: Convert to fraction form
    20,341.88/28,070.38 = 13,626.42/x
  3. Step 3: Cross multiply
    20,341.88x = 28,070.38 × 13,626.42
  4. Step 4: Simplify right side
    20,341.88x = 382,498,787.44
  5. Step 5: Solve for x
    x = 382,498,787.44/20,341.88
  6. Step 6: Final answer
    x = 18,803.51

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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.