Home / 21,303.92-29,395.96-11,872.24

Finding the Fourth Proportional to 21,303.92, 29,395.96 and 11,872.24

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Solution

The fourth proportional to 21,303.92, 29,395.96 and 11,872.24 is: 16,381.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303.92 : 29,395.96 = 11,872.24 : x
  2. Step 2: Convert to fraction form
    21,303.92/29,395.96 = 11,872.24/x
  3. Step 3: Cross multiply
    21,303.92x = 29,395.96 × 11,872.24
  4. Step 4: Simplify right side
    21,303.92x = 348,995,892.15
  5. Step 5: Solve for x
    x = 348,995,892.15/21,303.92
  6. Step 6: Final answer
    x = 16,381.77

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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.