Home / 20,144.72-30,214.67-5,354.77

Finding the Fourth Proportional to 20,144.72, 30,214.67 and 5,354.77

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Solution

The fourth proportional to 20,144.72, 30,214.67 and 5,354.77 is: 8,031.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.72 : 30,214.67 = 5,354.77 : x
  2. Step 2: Convert to fraction form
    20,144.72/30,214.67 = 5,354.77/x
  3. Step 3: Cross multiply
    20,144.72x = 30,214.67 × 5,354.77
  4. Step 4: Simplify right side
    20,144.72x = 161,792,506.17
  5. Step 5: Solve for x
    x = 161,792,506.17/20,144.72
  6. Step 6: Final answer
    x = 8,031.51

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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.