Home / 14,258.43-21,387.28-3,869.91

Finding the Fourth Proportional to 14,258.43, 21,387.28 and 3,869.91

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Solution

The fourth proportional to 14,258.43, 21,387.28 and 3,869.91 is: 5,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.43 : 21,387.28 = 3,869.91 : x
  2. Step 2: Convert to fraction form
    14,258.43/21,387.28 = 3,869.91/x
  3. Step 3: Cross multiply
    14,258.43x = 21,387.28 × 3,869.91
  4. Step 4: Simplify right side
    14,258.43x = 82,766,848.74
  5. Step 5: Solve for x
    x = 82,766,848.74/14,258.43
  6. Step 6: Final answer
    x = 5,804.77

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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.