Home / 20,334.14-28,063.62-12,377.51

Finding the Fourth Proportional to 20,334.14, 28,063.62 and 12,377.51

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Solution

The fourth proportional to 20,334.14, 28,063.62 and 12,377.51 is: 17,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334.14 : 28,063.62 = 12,377.51 : x
  2. Step 2: Convert to fraction form
    20,334.14/28,063.62 = 12,377.51/x
  3. Step 3: Cross multiply
    20,334.14x = 28,063.62 × 12,377.51
  4. Step 4: Simplify right side
    20,334.14x = 347,357,737.19
  5. Step 5: Solve for x
    x = 347,357,737.19/20,334.14
  6. Step 6: Final answer
    x = 17,082.49

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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.