Home / 21,497.78-32,244.38-13,163.28

Finding the Fourth Proportional to 21,497.78, 32,244.38 and 13,163.28

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Solution

The fourth proportional to 21,497.78, 32,244.38 and 13,163.28 is: 19,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,497.78 : 32,244.38 = 13,163.28 : x
  2. Step 2: Convert to fraction form
    21,497.78/32,244.38 = 13,163.28/x
  3. Step 3: Cross multiply
    21,497.78x = 32,244.38 × 13,163.28
  4. Step 4: Simplify right side
    21,497.78x = 424,441,802.37
  5. Step 5: Solve for x
    x = 424,441,802.37/21,497.78
  6. Step 6: Final answer
    x = 19,743.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.