Home / 47,422.88-71,153.48-21,109.64

Finding the Fourth Proportional to 47,422.88, 71,153.48 and 21,109.64

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Solution

The fourth proportional to 47,422.88, 71,153.48 and 21,109.64 is: 31,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,422.88 : 71,153.48 = 21,109.64 : x
  2. Step 2: Convert to fraction form
    47,422.88/71,153.48 = 21,109.64/x
  3. Step 3: Cross multiply
    47,422.88x = 71,153.48 × 21,109.64
  4. Step 4: Simplify right side
    47,422.88x = 1,502,024,347.55
  5. Step 5: Solve for x
    x = 1,502,024,347.55/47,422.88
  6. Step 6: Final answer
    x = 31,672.99

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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.