Home / 18,700.17-28,019.37-16,770.75

Finding the Fourth Proportional to 18,700.17, 28,019.37 and 16,770.75

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Solution

The fourth proportional to 18,700.17, 28,019.37 and 16,770.75 is: 25,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.17 : 28,019.37 = 16,770.75 : x
  2. Step 2: Convert to fraction form
    18,700.17/28,019.37 = 16,770.75/x
  3. Step 3: Cross multiply
    18,700.17x = 28,019.37 × 16,770.75
  4. Step 4: Simplify right side
    18,700.17x = 469,905,849.43
  5. Step 5: Solve for x
    x = 469,905,849.43/18,700.17
  6. Step 6: Final answer
    x = 25,128.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.