Home / 47,321.64-65,294.78-28,459.98

Finding the Fourth Proportional to 47,321.64, 65,294.78 and 28,459.98

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Solution

The fourth proportional to 47,321.64, 65,294.78 and 28,459.98 is: 39,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,321.64 : 65,294.78 = 28,459.98 : x
  2. Step 2: Convert to fraction form
    47,321.64/65,294.78 = 28,459.98/x
  3. Step 3: Cross multiply
    47,321.64x = 65,294.78 × 28,459.98
  4. Step 4: Simplify right side
    47,321.64x = 1,858,287,990.60
  5. Step 5: Solve for x
    x = 1,858,287,990.60/47,321.64
  6. Step 6: Final answer
    x = 39,269.31

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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.