Home / 28,355.33-39,134.09-16,260.55

Finding the Fourth Proportional to 28,355.33, 39,134.09 and 16,260.55

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Solution

The fourth proportional to 28,355.33, 39,134.09 and 16,260.55 is: 22,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.33 : 39,134.09 = 16,260.55 : x
  2. Step 2: Convert to fraction form
    28,355.33/39,134.09 = 16,260.55/x
  3. Step 3: Cross multiply
    28,355.33x = 39,134.09 × 16,260.55
  4. Step 4: Simplify right side
    28,355.33x = 636,341,550.18
  5. Step 5: Solve for x
    x = 636,341,550.18/28,355.33
  6. Step 6: Final answer
    x = 22,441.69

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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.