Home / 28,113.92-38,765.56-19,166.64

Finding the Fourth Proportional to 28,113.92, 38,765.56 and 19,166.64

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Solution

The fourth proportional to 28,113.92, 38,765.56 and 19,166.64 is: 26,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.92 : 38,765.56 = 19,166.64 : x
  2. Step 2: Convert to fraction form
    28,113.92/38,765.56 = 19,166.64/x
  3. Step 3: Cross multiply
    28,113.92x = 38,765.56 × 19,166.64
  4. Step 4: Simplify right side
    28,113.92x = 743,005,532.92
  5. Step 5: Solve for x
    x = 743,005,532.92/28,113.92
  6. Step 6: Final answer
    x = 26,428.39

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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.