Home / 28,376.68-39,149.16-16,435.66

Finding the Fourth Proportional to 28,376.68, 39,149.16 and 16,435.66

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Solution

The fourth proportional to 28,376.68, 39,149.16 and 16,435.66 is: 22,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.68 : 39,149.16 = 16,435.66 : x
  2. Step 2: Convert to fraction form
    28,376.68/39,149.16 = 16,435.66/x
  3. Step 3: Cross multiply
    28,376.68x = 39,149.16 × 16,435.66
  4. Step 4: Simplify right side
    28,376.68x = 643,442,283.05
  5. Step 5: Solve for x
    x = 643,442,283.05/28,376.68
  6. Step 6: Final answer
    x = 22,675.04

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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.