Home / 21,258.36-31,850.60-14,919.80

Finding the Fourth Proportional to 21,258.36, 31,850.60 and 14,919.80

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Solution

The fourth proportional to 21,258.36, 31,850.60 and 14,919.80 is: 22,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.36 : 31,850.60 = 14,919.80 : x
  2. Step 2: Convert to fraction form
    21,258.36/31,850.60 = 14,919.80/x
  3. Step 3: Cross multiply
    21,258.36x = 31,850.60 × 14,919.80
  4. Step 4: Simplify right side
    21,258.36x = 475,204,581.88
  5. Step 5: Solve for x
    x = 475,204,581.88/21,258.36
  6. Step 6: Final answer
    x = 22,353.77

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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.