Home / 28,788.17-39,737.61-16,855.34

Finding the Fourth Proportional to 28,788.17, 39,737.61 and 16,855.34

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Solution

The fourth proportional to 28,788.17, 39,737.61 and 16,855.34 is: 23,266.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.17 : 39,737.61 = 16,855.34 : x
  2. Step 2: Convert to fraction form
    28,788.17/39,737.61 = 16,855.34/x
  3. Step 3: Cross multiply
    28,788.17x = 39,737.61 × 16,855.34
  4. Step 4: Simplify right side
    28,788.17x = 669,790,728.65
  5. Step 5: Solve for x
    x = 669,790,728.65/28,788.17
  6. Step 6: Final answer
    x = 23,266.18

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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.