Home / 38,704.20-58,064.40-12,411.60

Finding the Fourth Proportional to 38,704.20, 58,064.40 and 12,411.60

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Solution

The fourth proportional to 38,704.20, 58,064.40 and 12,411.60 is: 18,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,704.20 : 58,064.40 = 12,411.60 : x
  2. Step 2: Convert to fraction form
    38,704.20/58,064.40 = 12,411.60/x
  3. Step 3: Cross multiply
    38,704.20x = 58,064.40 × 12,411.60
  4. Step 4: Simplify right side
    38,704.20x = 720,672,107.04
  5. Step 5: Solve for x
    x = 720,672,107.04/38,704.20
  6. Step 6: Final answer
    x = 18,620.00

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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.