Home / 31,819.53-47,739.66-15,177.39

Finding the Fourth Proportional to 31,819.53, 47,739.66 and 15,177.39

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Solution

The fourth proportional to 31,819.53, 47,739.66 and 15,177.39 is: 22,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.53 : 47,739.66 = 15,177.39 : x
  2. Step 2: Convert to fraction form
    31,819.53/47,739.66 = 15,177.39/x
  3. Step 3: Cross multiply
    31,819.53x = 47,739.66 × 15,177.39
  4. Step 4: Simplify right side
    31,819.53x = 724,563,362.40
  5. Step 5: Solve for x
    x = 724,563,362.40/31,819.53
  6. Step 6: Final answer
    x = 22,771.03

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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.