Home / 28,920.78-43,384.23-9,194.72

Finding the Fourth Proportional to 28,920.78, 43,384.23 and 9,194.72

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Solution

The fourth proportional to 28,920.78, 43,384.23 and 9,194.72 is: 13,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.78 : 43,384.23 = 9,194.72 : x
  2. Step 2: Convert to fraction form
    28,920.78/43,384.23 = 9,194.72/x
  3. Step 3: Cross multiply
    28,920.78x = 43,384.23 × 9,194.72
  4. Step 4: Simplify right side
    28,920.78x = 398,905,630.34
  5. Step 5: Solve for x
    x = 398,905,630.34/28,920.78
  6. Step 6: Final answer
    x = 13,793.05

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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.