Home / 20,148.89-30,222.41-7,002.29

Finding the Fourth Proportional to 20,148.89, 30,222.41 and 7,002.29

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Solution

The fourth proportional to 20,148.89, 30,222.41 and 7,002.29 is: 10,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.89 : 30,222.41 = 7,002.29 : x
  2. Step 2: Convert to fraction form
    20,148.89/30,222.41 = 7,002.29/x
  3. Step 3: Cross multiply
    20,148.89x = 30,222.41 × 7,002.29
  4. Step 4: Simplify right side
    20,148.89x = 211,625,893.20
  5. Step 5: Solve for x
    x = 211,625,893.20/20,148.89
  6. Step 6: Final answer
    x = 10,503.11

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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.