Home / 21,353.58-29,467.62-12,406.10

Finding the Fourth Proportional to 21,353.58, 29,467.62 and 12,406.10

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Solution

The fourth proportional to 21,353.58, 29,467.62 and 12,406.10 is: 17,120.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.58 : 29,467.62 = 12,406.10 : x
  2. Step 2: Convert to fraction form
    21,353.58/29,467.62 = 12,406.10/x
  3. Step 3: Cross multiply
    21,353.58x = 29,467.62 × 12,406.10
  4. Step 4: Simplify right side
    21,353.58x = 365,578,240.48
  5. Step 5: Solve for x
    x = 365,578,240.48/21,353.58
  6. Step 6: Final answer
    x = 17,120.23

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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.