Home / 14,228.40-21,340.20-3,837.72

Finding the Fourth Proportional to 14,228.40, 21,340.20 and 3,837.72

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Solution

The fourth proportional to 14,228.40, 21,340.20 and 3,837.72 is: 5,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.40 : 21,340.20 = 3,837.72 : x
  2. Step 2: Convert to fraction form
    14,228.40/21,340.20 = 3,837.72/x
  3. Step 3: Cross multiply
    14,228.40x = 21,340.20 × 3,837.72
  4. Step 4: Simplify right side
    14,228.40x = 81,897,712.34
  5. Step 5: Solve for x
    x = 81,897,712.34/14,228.40
  6. Step 6: Final answer
    x = 5,755.93

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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.