Home / 18,770.14-28,191.66-13,820.23

Finding the Fourth Proportional to 18,770.14, 28,191.66 and 13,820.23

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Solution

The fourth proportional to 18,770.14, 28,191.66 and 13,820.23 is: 20,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.14 : 28,191.66 = 13,820.23 : x
  2. Step 2: Convert to fraction form
    18,770.14/28,191.66 = 13,820.23/x
  3. Step 3: Cross multiply
    18,770.14x = 28,191.66 × 13,820.23
  4. Step 4: Simplify right side
    18,770.14x = 389,615,225.28
  5. Step 5: Solve for x
    x = 389,615,225.28/18,770.14
  6. Step 6: Final answer
    x = 20,757.18

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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.