Home / 20,160.34-30,244.16-8,307.52

Finding the Fourth Proportional to 20,160.34, 30,244.16 and 8,307.52

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Solution

The fourth proportional to 20,160.34, 30,244.16 and 8,307.52 is: 12,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.34 : 30,244.16 = 8,307.52 : x
  2. Step 2: Convert to fraction form
    20,160.34/30,244.16 = 8,307.52/x
  3. Step 3: Cross multiply
    20,160.34x = 30,244.16 × 8,307.52
  4. Step 4: Simplify right side
    20,160.34x = 251,253,991.50
  5. Step 5: Solve for x
    x = 251,253,991.50/20,160.34
  6. Step 6: Final answer
    x = 12,462.78

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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.