Home / 21,974.76-30,325.25-11,903.22

Finding the Fourth Proportional to 21,974.76, 30,325.25 and 11,903.22

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Solution

The fourth proportional to 21,974.76, 30,325.25 and 11,903.22 is: 16,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.76 : 30,325.25 = 11,903.22 : x
  2. Step 2: Convert to fraction form
    21,974.76/30,325.25 = 11,903.22/x
  3. Step 3: Cross multiply
    21,974.76x = 30,325.25 × 11,903.22
  4. Step 4: Simplify right side
    21,974.76x = 360,968,152.06
  5. Step 5: Solve for x
    x = 360,968,152.06/21,974.76
  6. Step 6: Final answer
    x = 16,426.49

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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.