Home / 28,630.36-39,510.90-16,691.68

Finding the Fourth Proportional to 28,630.36, 39,510.90 and 16,691.68

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Solution

The fourth proportional to 28,630.36, 39,510.90 and 16,691.68 is: 23,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,630.36 : 39,510.90 = 16,691.68 : x
  2. Step 2: Convert to fraction form
    28,630.36/39,510.90 = 16,691.68/x
  3. Step 3: Cross multiply
    28,630.36x = 39,510.90 × 16,691.68
  4. Step 4: Simplify right side
    28,630.36x = 659,503,299.31
  5. Step 5: Solve for x
    x = 659,503,299.31/28,630.36
  6. Step 6: Final answer
    x = 23,035.10

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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.