Home / 21,623.34-29,833.44-12,190.08

Finding the Fourth Proportional to 21,623.34, 29,833.44 and 12,190.08

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Solution

The fourth proportional to 21,623.34, 29,833.44 and 12,190.08 is: 16,818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.34 : 29,833.44 = 12,190.08 : x
  2. Step 2: Convert to fraction form
    21,623.34/29,833.44 = 12,190.08/x
  3. Step 3: Cross multiply
    21,623.34x = 29,833.44 × 12,190.08
  4. Step 4: Simplify right side
    21,623.34x = 363,672,020.28
  5. Step 5: Solve for x
    x = 363,672,020.28/21,623.34
  6. Step 6: Final answer
    x = 16,818.49

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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.