Home / 47,416.48-71,149.28-21,140.16

Finding the Fourth Proportional to 47,416.48, 71,149.28 and 21,140.16

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Solution

The fourth proportional to 47,416.48, 71,149.28 and 21,140.16 is: 31,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,416.48 : 71,149.28 = 21,140.16 : x
  2. Step 2: Convert to fraction form
    47,416.48/71,149.28 = 21,140.16/x
  3. Step 3: Cross multiply
    47,416.48x = 71,149.28 × 21,140.16
  4. Step 4: Simplify right side
    47,416.48x = 1,504,107,163.08
  5. Step 5: Solve for x
    x = 1,504,107,163.08/47,416.48
  6. Step 6: Final answer
    x = 31,721.19

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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.