Home / 20,737.19-28,617.80-12,241.40

Finding the Fourth Proportional to 20,737.19, 28,617.80 and 12,241.40

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Solution

The fourth proportional to 20,737.19, 28,617.80 and 12,241.40 is: 16,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.19 : 28,617.80 = 12,241.40 : x
  2. Step 2: Convert to fraction form
    20,737.19/28,617.80 = 12,241.40/x
  3. Step 3: Cross multiply
    20,737.19x = 28,617.80 × 12,241.40
  4. Step 4: Simplify right side
    20,737.19x = 350,321,732.62
  5. Step 5: Solve for x
    x = 350,321,732.62/20,737.19
  6. Step 6: Final answer
    x = 16,893.40

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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.