Home / 21,439.36-29,585.46-12,007.44

Finding the Fourth Proportional to 21,439.36, 29,585.46 and 12,007.44

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Solution

The fourth proportional to 21,439.36, 29,585.46 and 12,007.44 is: 16,569.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.36 : 29,585.46 = 12,007.44 : x
  2. Step 2: Convert to fraction form
    21,439.36/29,585.46 = 12,007.44/x
  3. Step 3: Cross multiply
    21,439.36x = 29,585.46 × 12,007.44
  4. Step 4: Simplify right side
    21,439.36x = 355,245,635.82
  5. Step 5: Solve for x
    x = 355,245,635.82/21,439.36
  6. Step 6: Final answer
    x = 16,569.79

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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.