Home / 28,941.78-43,406.10-8,166.90

Finding the Fourth Proportional to 28,941.78, 43,406.10 and 8,166.90

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Solution

The fourth proportional to 28,941.78, 43,406.10 and 8,166.90 is: 12,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.78 : 43,406.10 = 8,166.90 : x
  2. Step 2: Convert to fraction form
    28,941.78/43,406.10 = 8,166.90/x
  3. Step 3: Cross multiply
    28,941.78x = 43,406.10 × 8,166.90
  4. Step 4: Simplify right side
    28,941.78x = 354,493,278.09
  5. Step 5: Solve for x
    x = 354,493,278.09/28,941.78
  6. Step 6: Final answer
    x = 12,248.50

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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.