Home / 14,247.60-21,371.28-3,859.28

Finding the Fourth Proportional to 14,247.60, 21,371.28 and 3,859.28

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Solution

The fourth proportional to 14,247.60, 21,371.28 and 3,859.28 is: 5,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.60 : 21,371.28 = 3,859.28 : x
  2. Step 2: Convert to fraction form
    14,247.60/21,371.28 = 3,859.28/x
  3. Step 3: Cross multiply
    14,247.60x = 21,371.28 × 3,859.28
  4. Step 4: Simplify right side
    14,247.60x = 82,477,753.48
  5. Step 5: Solve for x
    x = 82,477,753.48/14,247.60
  6. Step 6: Final answer
    x = 5,788.89

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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.