Home / 47,212.08-70,796.93-13,920.48

Finding the Fourth Proportional to 47,212.08, 70,796.93 and 13,920.48

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Solution

The fourth proportional to 47,212.08, 70,796.93 and 13,920.48 is: 20,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,212.08 : 70,796.93 = 13,920.48 : x
  2. Step 2: Convert to fraction form
    47,212.08/70,796.93 = 13,920.48/x
  3. Step 3: Cross multiply
    47,212.08x = 70,796.93 × 13,920.48
  4. Step 4: Simplify right side
    47,212.08x = 985,527,178.52
  5. Step 5: Solve for x
    x = 985,527,178.52/47,212.08
  6. Step 6: Final answer
    x = 20,874.47

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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.