Home / 21,957.47-30,293.83-12,396.23

Finding the Fourth Proportional to 21,957.47, 30,293.83 and 12,396.23

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Solution

The fourth proportional to 21,957.47, 30,293.83 and 12,396.23 is: 17,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.47 : 30,293.83 = 12,396.23 : x
  2. Step 2: Convert to fraction form
    21,957.47/30,293.83 = 12,396.23/x
  3. Step 3: Cross multiply
    21,957.47x = 30,293.83 × 12,396.23
  4. Step 4: Simplify right side
    21,957.47x = 375,529,284.26
  5. Step 5: Solve for x
    x = 375,529,284.26/21,957.47
  6. Step 6: Final answer
    x = 17,102.58

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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.