Home / 14,287.05-21,429.95-3,898.80

Finding the Fourth Proportional to 14,287.05, 21,429.95 and 3,898.80

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Solution

The fourth proportional to 14,287.05, 21,429.95 and 3,898.80 is: 5,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.05 : 21,429.95 = 3,898.80 : x
  2. Step 2: Convert to fraction form
    14,287.05/21,429.95 = 3,898.80/x
  3. Step 3: Cross multiply
    14,287.05x = 21,429.95 × 3,898.80
  4. Step 4: Simplify right side
    14,287.05x = 83,551,069.57
  5. Step 5: Solve for x
    x = 83,551,069.57/14,287.05
  6. Step 6: Final answer
    x = 5,848.03

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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.