Home / 20,653.11-30,761.07-20,552.43

Finding the Fourth Proportional to 20,653.11, 30,761.07 and 20,552.43

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Solution

The fourth proportional to 20,653.11, 30,761.07 and 20,552.43 is: 30,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.11 : 30,761.07 = 20,552.43 : x
  2. Step 2: Convert to fraction form
    20,653.11/30,761.07 = 20,552.43/x
  3. Step 3: Cross multiply
    20,653.11x = 30,761.07 × 20,552.43
  4. Step 4: Simplify right side
    20,653.11x = 632,214,737.90
  5. Step 5: Solve for x
    x = 632,214,737.90/20,653.11
  6. Step 6: Final answer
    x = 30,611.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.