Home / 21,601.82-29,799.14-14,875.79

Finding the Fourth Proportional to 21,601.82, 29,799.14 and 14,875.79

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Solution

The fourth proportional to 21,601.82, 29,799.14 and 14,875.79 is: 20,520.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.82 : 29,799.14 = 14,875.79 : x
  2. Step 2: Convert to fraction form
    21,601.82/29,799.14 = 14,875.79/x
  3. Step 3: Cross multiply
    21,601.82x = 29,799.14 × 14,875.79
  4. Step 4: Simplify right side
    21,601.82x = 443,285,674.44
  5. Step 5: Solve for x
    x = 443,285,674.44/21,601.82
  6. Step 6: Final answer
    x = 20,520.76

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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.