Home / 21,252.52-29,267.22-21,187.72

Finding the Fourth Proportional to 21,252.52, 29,267.22 and 21,187.72

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Solution

The fourth proportional to 21,252.52, 29,267.22 and 21,187.72 is: 29,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252.52 : 29,267.22 = 21,187.72 : x
  2. Step 2: Convert to fraction form
    21,252.52/29,267.22 = 21,187.72/x
  3. Step 3: Cross multiply
    21,252.52x = 29,267.22 × 21,187.72
  4. Step 4: Simplify right side
    21,252.52x = 620,105,662.54
  5. Step 5: Solve for x
    x = 620,105,662.54/21,252.52
  6. Step 6: Final answer
    x = 29,177.98

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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.