Home / 28,711.18-39,617.90-16,765.84

Finding the Fourth Proportional to 28,711.18, 39,617.90 and 16,765.84

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Solution

The fourth proportional to 28,711.18, 39,617.90 and 16,765.84 is: 23,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.18 : 39,617.90 = 16,765.84 : x
  2. Step 2: Convert to fraction form
    28,711.18/39,617.90 = 16,765.84/x
  3. Step 3: Cross multiply
    28,711.18x = 39,617.90 × 16,765.84
  4. Step 4: Simplify right side
    28,711.18x = 664,227,252.53
  5. Step 5: Solve for x
    x = 664,227,252.53/28,711.18
  6. Step 6: Final answer
    x = 23,134.80

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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.