Home / 47,290.40-70,929.82-12,227.12

Finding the Fourth Proportional to 47,290.40, 70,929.82 and 12,227.12

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Solution

The fourth proportional to 47,290.40, 70,929.82 and 12,227.12 is: 18,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,290.40 : 70,929.82 = 12,227.12 : x
  2. Step 2: Convert to fraction form
    47,290.40/70,929.82 = 12,227.12/x
  3. Step 3: Cross multiply
    47,290.40x = 70,929.82 × 12,227.12
  4. Step 4: Simplify right side
    47,290.40x = 867,267,420.72
  5. Step 5: Solve for x
    x = 867,267,420.72/47,290.40
  6. Step 6: Final answer
    x = 18,339.19

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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.