Home / 20,737.74-28,620.30-11,787.45

Finding the Fourth Proportional to 20,737.74, 28,620.30 and 11,787.45

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Solution

The fourth proportional to 20,737.74, 28,620.30 and 11,787.45 is: 16,267.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.74 : 28,620.30 = 11,787.45 : x
  2. Step 2: Convert to fraction form
    20,737.74/28,620.30 = 11,787.45/x
  3. Step 3: Cross multiply
    20,737.74x = 28,620.30 × 11,787.45
  4. Step 4: Simplify right side
    20,737.74x = 337,360,355.24
  5. Step 5: Solve for x
    x = 337,360,355.24/20,737.74
  6. Step 6: Final answer
    x = 16,267.94

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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.