Home / 21,663.76-29,897.82-12,234.04

Finding the Fourth Proportional to 21,663.76, 29,897.82 and 12,234.04

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Solution

The fourth proportional to 21,663.76, 29,897.82 and 12,234.04 is: 16,884.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,663.76 : 29,897.82 = 12,234.04 : x
  2. Step 2: Convert to fraction form
    21,663.76/29,897.82 = 12,234.04/x
  3. Step 3: Cross multiply
    21,663.76x = 29,897.82 × 12,234.04
  4. Step 4: Simplify right side
    21,663.76x = 365,771,125.79
  5. Step 5: Solve for x
    x = 365,771,125.79/21,663.76
  6. Step 6: Final answer
    x = 16,884.01

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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.