Home / 28,381.65-39,166.67-16,451.90

Finding the Fourth Proportional to 28,381.65, 39,166.67 and 16,451.90

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Solution

The fourth proportional to 28,381.65, 39,166.67 and 16,451.90 is: 22,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.65 : 39,166.67 = 16,451.90 : x
  2. Step 2: Convert to fraction form
    28,381.65/39,166.67 = 16,451.90/x
  3. Step 3: Cross multiply
    28,381.65x = 39,166.67 × 16,451.90
  4. Step 4: Simplify right side
    28,381.65x = 644,366,138.17
  5. Step 5: Solve for x
    x = 644,366,138.17/28,381.65
  6. Step 6: Final answer
    x = 22,703.62

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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.