Home / 30,610.22-45,915.30-8,423.72

Finding the Fourth Proportional to 30,610.22, 45,915.30 and 8,423.72

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Solution

The fourth proportional to 30,610.22, 45,915.30 and 8,423.72 is: 12,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.22 : 45,915.30 = 8,423.72 : x
  2. Step 2: Convert to fraction form
    30,610.22/45,915.30 = 8,423.72/x
  3. Step 3: Cross multiply
    30,610.22x = 45,915.30 × 8,423.72
  4. Step 4: Simplify right side
    30,610.22x = 386,777,630.92
  5. Step 5: Solve for x
    x = 386,777,630.92/30,610.22
  6. Step 6: Final answer
    x = 12,635.57

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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.