Home / 22,301.52-30,772.60-12,868.28

Finding the Fourth Proportional to 22,301.52, 30,772.60 and 12,868.28

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Solution

The fourth proportional to 22,301.52, 30,772.60 and 12,868.28 is: 17,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,301.52 : 30,772.60 = 12,868.28 : x
  2. Step 2: Convert to fraction form
    22,301.52/30,772.60 = 12,868.28/x
  3. Step 3: Cross multiply
    22,301.52x = 30,772.60 × 12,868.28
  4. Step 4: Simplify right side
    22,301.52x = 395,990,433.13
  5. Step 5: Solve for x
    x = 395,990,433.13/22,301.52
  6. Step 6: Final answer
    x = 17,756.21

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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.