Home / 31,098.03-42,915.34-20,350.27

Finding the Fourth Proportional to 31,098.03, 42,915.34 and 20,350.27

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Solution

The fourth proportional to 31,098.03, 42,915.34 and 20,350.27 is: 28,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,098.03 : 42,915.34 = 20,350.27 : x
  2. Step 2: Convert to fraction form
    31,098.03/42,915.34 = 20,350.27/x
  3. Step 3: Cross multiply
    31,098.03x = 42,915.34 × 20,350.27
  4. Step 4: Simplify right side
    31,098.03x = 873,338,756.14
  5. Step 5: Solve for x
    x = 873,338,756.14/31,098.03
  6. Step 6: Final answer
    x = 28,083.42

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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.