Home / 47,418.58-71,140.47-14,138.74

Finding the Fourth Proportional to 47,418.58, 71,140.47 and 14,138.74

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Solution

The fourth proportional to 47,418.58, 71,140.47 and 14,138.74 is: 21,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,418.58 : 71,140.47 = 14,138.74 : x
  2. Step 2: Convert to fraction form
    47,418.58/71,140.47 = 14,138.74/x
  3. Step 3: Cross multiply
    47,418.58x = 71,140.47 × 14,138.74
  4. Step 4: Simplify right side
    47,418.58x = 1,005,836,608.81
  5. Step 5: Solve for x
    x = 1,005,836,608.81/47,418.58
  6. Step 6: Final answer
    x = 21,211.87

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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.