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Finding the Fourth Proportional to 28,977.80, 43,466.70 and 8,201.30

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Solution

The fourth proportional to 28,977.80, 43,466.70 and 8,201.30 is: 12,301.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.80 : 43,466.70 = 8,201.30 : x
  2. Step 2: Convert to fraction form
    28,977.80/43,466.70 = 8,201.30/x
  3. Step 3: Cross multiply
    28,977.80x = 43,466.70 × 8,201.30
  4. Step 4: Simplify right side
    28,977.80x = 356,483,446.71
  5. Step 5: Solve for x
    x = 356,483,446.71/28,977.80
  6. Step 6: Final answer
    x = 12,301.95

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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.