Home / 21,764.34-29,992.68-14,678.46

Finding the Fourth Proportional to 21,764.34, 29,992.68 and 14,678.46

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Solution

The fourth proportional to 21,764.34, 29,992.68 and 14,678.46 is: 20,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.34 : 29,992.68 = 14,678.46 : x
  2. Step 2: Convert to fraction form
    21,764.34/29,992.68 = 14,678.46/x
  3. Step 3: Cross multiply
    21,764.34x = 29,992.68 × 14,678.46
  4. Step 4: Simplify right side
    21,764.34x = 440,246,353.67
  5. Step 5: Solve for x
    x = 440,246,353.67/21,764.34
  6. Step 6: Final answer
    x = 20,227.88

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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.