Home / 21,184.72-29,234.76-11,753.32

Finding the Fourth Proportional to 21,184.72, 29,234.76 and 11,753.32

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Solution

The fourth proportional to 21,184.72, 29,234.76 and 11,753.32 is: 16,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.72 : 29,234.76 = 11,753.32 : x
  2. Step 2: Convert to fraction form
    21,184.72/29,234.76 = 11,753.32/x
  3. Step 3: Cross multiply
    21,184.72x = 29,234.76 × 11,753.32
  4. Step 4: Simplify right side
    21,184.72x = 343,605,489.40
  5. Step 5: Solve for x
    x = 343,605,489.40/21,184.72
  6. Step 6: Final answer
    x = 16,219.50

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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.