Home / 47,540.48-65,610.34-28,420.31

Finding the Fourth Proportional to 47,540.48, 65,610.34 and 28,420.31

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Solution

The fourth proportional to 47,540.48, 65,610.34 and 28,420.31 is: 39,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,540.48 : 65,610.34 = 28,420.31 : x
  2. Step 2: Convert to fraction form
    47,540.48/65,610.34 = 28,420.31/x
  3. Step 3: Cross multiply
    47,540.48x = 65,610.34 × 28,420.31
  4. Step 4: Simplify right side
    47,540.48x = 1,864,666,294.98
  5. Step 5: Solve for x
    x = 1,864,666,294.98/47,540.48
  6. Step 6: Final answer
    x = 39,222.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.