Home / 47,939.28-71,852.44-21,613.20

Finding the Fourth Proportional to 47,939.28, 71,852.44 and 21,613.20

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Solution

The fourth proportional to 47,939.28, 71,852.44 and 21,613.20 is: 32,394.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.28 : 71,852.44 = 21,613.20 : x
  2. Step 2: Convert to fraction form
    47,939.28/71,852.44 = 21,613.20/x
  3. Step 3: Cross multiply
    47,939.28x = 71,852.44 × 21,613.20
  4. Step 4: Simplify right side
    47,939.28x = 1,552,961,156.21
  5. Step 5: Solve for x
    x = 1,552,961,156.21/47,939.28
  6. Step 6: Final answer
    x = 32,394.34

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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.