Home / 28,781.90-39,719.70-16,035.94

Finding the Fourth Proportional to 28,781.90, 39,719.70 and 16,035.94

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Solution

The fourth proportional to 28,781.90, 39,719.70 and 16,035.94 is: 22,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.90 : 39,719.70 = 16,035.94 : x
  2. Step 2: Convert to fraction form
    28,781.90/39,719.70 = 16,035.94/x
  3. Step 3: Cross multiply
    28,781.90x = 39,719.70 × 16,035.94
  4. Step 4: Simplify right side
    28,781.90x = 636,942,447.24
  5. Step 5: Solve for x
    x = 636,942,447.24/28,781.90
  6. Step 6: Final answer
    x = 22,129.97

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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.