Home / 20,817.03-31,240.94-15,284.73

Finding the Fourth Proportional to 20,817.03, 31,240.94 and 15,284.73

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Solution

The fourth proportional to 20,817.03, 31,240.94 and 15,284.73 is: 22,938.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817.03 : 31,240.94 = 15,284.73 : x
  2. Step 2: Convert to fraction form
    20,817.03/31,240.94 = 15,284.73/x
  3. Step 3: Cross multiply
    20,817.03x = 31,240.94 × 15,284.73
  4. Step 4: Simplify right side
    20,817.03x = 477,509,256.42
  5. Step 5: Solve for x
    x = 477,509,256.42/20,817.03
  6. Step 6: Final answer
    x = 22,938.39

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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.