Home / 28,140.75-38,830.86-16,207.97

Finding the Fourth Proportional to 28,140.75, 38,830.86 and 16,207.97

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Solution

The fourth proportional to 28,140.75, 38,830.86 and 16,207.97 is: 22,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,140.75 : 38,830.86 = 16,207.97 : x
  2. Step 2: Convert to fraction form
    28,140.75/38,830.86 = 16,207.97/x
  3. Step 3: Cross multiply
    28,140.75x = 38,830.86 × 16,207.97
  4. Step 4: Simplify right side
    28,140.75x = 629,369,219.80
  5. Step 5: Solve for x
    x = 629,369,219.80/28,140.75
  6. Step 6: Final answer
    x = 22,365.05

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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.