Home / 28,089.92-38,759.64-16,153.76

Finding the Fourth Proportional to 28,089.92, 38,759.64 and 16,153.76

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Solution

The fourth proportional to 28,089.92, 38,759.64 and 16,153.76 is: 22,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.92 : 38,759.64 = 16,153.76 : x
  2. Step 2: Convert to fraction form
    28,089.92/38,759.64 = 16,153.76/x
  3. Step 3: Cross multiply
    28,089.92x = 38,759.64 × 16,153.76
  4. Step 4: Simplify right side
    28,089.92x = 626,113,922.25
  5. Step 5: Solve for x
    x = 626,113,922.25/28,089.92
  6. Step 6: Final answer
    x = 22,289.63

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Double scale
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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.