Home / 21,901.54-30,223.38-12,468.28

Finding the Fourth Proportional to 21,901.54, 30,223.38 and 12,468.28

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Solution

The fourth proportional to 21,901.54, 30,223.38 and 12,468.28 is: 17,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.54 : 30,223.38 = 12,468.28 : x
  2. Step 2: Convert to fraction form
    21,901.54/30,223.38 = 12,468.28/x
  3. Step 3: Cross multiply
    21,901.54x = 30,223.38 × 12,468.28
  4. Step 4: Simplify right side
    21,901.54x = 376,833,564.39
  5. Step 5: Solve for x
    x = 376,833,564.39/21,901.54
  6. Step 6: Final answer
    x = 17,205.80

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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.