Home / 21,184.63-29,234.82-11,753.20

Finding the Fourth Proportional to 21,184.63, 29,234.82 and 11,753.20

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Solution

The fourth proportional to 21,184.63, 29,234.82 and 11,753.20 is: 16,219.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.63 : 29,234.82 = 11,753.20 : x
  2. Step 2: Convert to fraction form
    21,184.63/29,234.82 = 11,753.20/x
  3. Step 3: Cross multiply
    21,184.63x = 29,234.82 × 11,753.20
  4. Step 4: Simplify right side
    21,184.63x = 343,602,686.42
  5. Step 5: Solve for x
    x = 343,602,686.42/21,184.63
  6. Step 6: Final answer
    x = 16,219.43

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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.