Home / 47,671.56-71,540.16-21,405.72

Finding the Fourth Proportional to 47,671.56, 71,540.16 and 21,405.72

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Solution

The fourth proportional to 47,671.56, 71,540.16 and 21,405.72 is: 32,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,671.56 : 71,540.16 = 21,405.72 : x
  2. Step 2: Convert to fraction form
    47,671.56/71,540.16 = 21,405.72/x
  3. Step 3: Cross multiply
    47,671.56x = 71,540.16 × 21,405.72
  4. Step 4: Simplify right side
    47,671.56x = 1,531,368,633.72
  5. Step 5: Solve for x
    x = 1,531,368,633.72/47,671.56
  6. Step 6: Final answer
    x = 32,123.32

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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.