Home / 34,218.24-47,221.20-19,880.88

Finding the Fourth Proportional to 34,218.24, 47,221.20 and 19,880.88

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Solution

The fourth proportional to 34,218.24, 47,221.20 and 19,880.88 is: 27,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,218.24 : 47,221.20 = 19,880.88 : x
  2. Step 2: Convert to fraction form
    34,218.24/47,221.20 = 19,880.88/x
  3. Step 3: Cross multiply
    34,218.24x = 47,221.20 × 19,880.88
  4. Step 4: Simplify right side
    34,218.24x = 938,799,010.66
  5. Step 5: Solve for x
    x = 938,799,010.66/34,218.24
  6. Step 6: Final answer
    x = 27,435.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.