Home / 47,475.76-71,207.46-21,174.40

Finding the Fourth Proportional to 47,475.76, 71,207.46 and 21,174.40

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Solution

The fourth proportional to 47,475.76, 71,207.46 and 21,174.40 is: 31,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,475.76 : 71,207.46 = 21,174.40 : x
  2. Step 2: Convert to fraction form
    47,475.76/71,207.46 = 21,174.40/x
  3. Step 3: Cross multiply
    47,475.76x = 71,207.46 × 21,174.40
  4. Step 4: Simplify right side
    47,475.76x = 1,507,775,241.02
  5. Step 5: Solve for x
    x = 1,507,775,241.02/47,475.76
  6. Step 6: Final answer
    x = 31,758.84

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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.