Home / 47,923.12-71,830.68-21,274.12

Finding the Fourth Proportional to 47,923.12, 71,830.68 and 21,274.12

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Solution

The fourth proportional to 47,923.12, 71,830.68 and 21,274.12 is: 31,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,923.12 : 71,830.68 = 21,274.12 : x
  2. Step 2: Convert to fraction form
    47,923.12/71,830.68 = 21,274.12/x
  3. Step 3: Cross multiply
    47,923.12x = 71,830.68 × 21,274.12
  4. Step 4: Simplify right side
    47,923.12x = 1,528,134,506.00
  5. Step 5: Solve for x
    x = 1,528,134,506.00/47,923.12
  6. Step 6: Final answer
    x = 31,887.21

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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.