Home / 21,532.36-29,717.12-11,973.20

Finding the Fourth Proportional to 21,532.36, 29,717.12 and 11,973.20

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Solution

The fourth proportional to 21,532.36, 29,717.12 and 11,973.20 is: 16,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,532.36 : 29,717.12 = 11,973.20 : x
  2. Step 2: Convert to fraction form
    21,532.36/29,717.12 = 11,973.20/x
  3. Step 3: Cross multiply
    21,532.36x = 29,717.12 × 11,973.20
  4. Step 4: Simplify right side
    21,532.36x = 355,809,021.18
  5. Step 5: Solve for x
    x = 355,809,021.18/21,532.36
  6. Step 6: Final answer
    x = 16,524.39

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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.