Home / 21,353.65-29,467.42-11,922.01

Finding the Fourth Proportional to 21,353.65, 29,467.42 and 11,922.01

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Solution

The fourth proportional to 21,353.65, 29,467.42 and 11,922.01 is: 16,452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.65 : 29,467.42 = 11,922.01 : x
  2. Step 2: Convert to fraction form
    21,353.65/29,467.42 = 11,922.01/x
  3. Step 3: Cross multiply
    21,353.65x = 29,467.42 × 11,922.01
  4. Step 4: Simplify right side
    21,353.65x = 351,310,875.91
  5. Step 5: Solve for x
    x = 351,310,875.91/21,353.65
  6. Step 6: Final answer
    x = 16,452.03

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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.