Home / 28,107.86-38,790.59-16,170.93

Finding the Fourth Proportional to 28,107.86, 38,790.59 and 16,170.93

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Solution

The fourth proportional to 28,107.86, 38,790.59 and 16,170.93 is: 22,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.86 : 38,790.59 = 16,170.93 : x
  2. Step 2: Convert to fraction form
    28,107.86/38,790.59 = 16,170.93/x
  3. Step 3: Cross multiply
    28,107.86x = 38,790.59 × 16,170.93
  4. Step 4: Simplify right side
    28,107.86x = 627,279,834.69
  5. Step 5: Solve for x
    x = 627,279,834.69/28,107.86
  6. Step 6: Final answer
    x = 22,316.89

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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.