Home / 31,741.20-47,628-13,035.60

Finding the Fourth Proportional to 31,741.20, 47,628 and 13,035.60

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Solution

The fourth proportional to 31,741.20, 47,628 and 13,035.60 is: 19,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,741.20 : 47,628 = 13,035.60 : x
  2. Step 2: Convert to fraction form
    31,741.20/47,628 = 13,035.60/x
  3. Step 3: Cross multiply
    31,741.20x = 47,628 × 13,035.60
  4. Step 4: Simplify right side
    31,741.20x = 620,859,556.80
  5. Step 5: Solve for x
    x = 620,859,556.80/31,741.20
  6. Step 6: Final answer
    x = 19,560.05

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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.