Home / 29,182.88-40,216.20-21,212.48

Finding the Fourth Proportional to 29,182.88, 40,216.20 and 21,212.48

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Solution

The fourth proportional to 29,182.88, 40,216.20 and 21,212.48 is: 29,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,182.88 : 40,216.20 = 21,212.48 : x
  2. Step 2: Convert to fraction form
    29,182.88/40,216.20 = 21,212.48/x
  3. Step 3: Cross multiply
    29,182.88x = 40,216.20 × 21,212.48
  4. Step 4: Simplify right side
    29,182.88x = 853,085,359.17
  5. Step 5: Solve for x
    x = 853,085,359.17/29,182.88
  6. Step 6: Final answer
    x = 29,232.39

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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.