Home / 28,930.30-43,395.45-8,153.80

Finding the Fourth Proportional to 28,930.30, 43,395.45 and 8,153.80

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Solution

The fourth proportional to 28,930.30, 43,395.45 and 8,153.80 is: 12,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.30 : 43,395.45 = 8,153.80 : x
  2. Step 2: Convert to fraction form
    28,930.30/43,395.45 = 8,153.80/x
  3. Step 3: Cross multiply
    28,930.30x = 43,395.45 × 8,153.80
  4. Step 4: Simplify right side
    28,930.30x = 353,837,820.21
  5. Step 5: Solve for x
    x = 353,837,820.21/28,930.30
  6. Step 6: Final answer
    x = 12,230.70

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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.