Home / 21,395.72-29,528.88-11,966.24

Finding the Fourth Proportional to 21,395.72, 29,528.88 and 11,966.24

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Solution

The fourth proportional to 21,395.72, 29,528.88 and 11,966.24 is: 16,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.72 : 29,528.88 = 11,966.24 : x
  2. Step 2: Convert to fraction form
    21,395.72/29,528.88 = 11,966.24/x
  3. Step 3: Cross multiply
    21,395.72x = 29,528.88 × 11,966.24
  4. Step 4: Simplify right side
    21,395.72x = 353,349,665.01
  5. Step 5: Solve for x
    x = 353,349,665.01/21,395.72
  6. Step 6: Final answer
    x = 16,514.97

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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.