Home / 20,737.30-28,608.44-13,179.58

Finding the Fourth Proportional to 20,737.30, 28,608.44 and 13,179.58

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Solution

The fourth proportional to 20,737.30, 28,608.44 and 13,179.58 is: 18,182.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.30 : 28,608.44 = 13,179.58 : x
  2. Step 2: Convert to fraction form
    20,737.30/28,608.44 = 13,179.58/x
  3. Step 3: Cross multiply
    20,737.30x = 28,608.44 × 13,179.58
  4. Step 4: Simplify right side
    20,737.30x = 377,047,223.66
  5. Step 5: Solve for x
    x = 377,047,223.66/20,737.30
  6. Step 6: Final answer
    x = 18,182.08

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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.