Home / 22,742.20-31,361.70-20,527.12

Finding the Fourth Proportional to 22,742.20, 31,361.70 and 20,527.12

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Solution

The fourth proportional to 22,742.20, 31,361.70 and 20,527.12 is: 28,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,742.20 : 31,361.70 = 20,527.12 : x
  2. Step 2: Convert to fraction form
    22,742.20/31,361.70 = 20,527.12/x
  3. Step 3: Cross multiply
    22,742.20x = 31,361.70 × 20,527.12
  4. Step 4: Simplify right side
    22,742.20x = 643,765,379.30
  5. Step 5: Solve for x
    x = 643,765,379.30/22,742.20
  6. Step 6: Final answer
    x = 28,307.08

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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.