Home / 28,276.25-39,010.46-16,788.62

Finding the Fourth Proportional to 28,276.25, 39,010.46 and 16,788.62

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Solution

The fourth proportional to 28,276.25, 39,010.46 and 16,788.62 is: 23,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.25 : 39,010.46 = 16,788.62 : x
  2. Step 2: Convert to fraction form
    28,276.25/39,010.46 = 16,788.62/x
  3. Step 3: Cross multiply
    28,276.25x = 39,010.46 × 16,788.62
  4. Step 4: Simplify right side
    28,276.25x = 654,931,509.97
  5. Step 5: Solve for x
    x = 654,931,509.97/28,276.25
  6. Step 6: Final answer
    x = 23,161.90

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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.