Home / 14,007.25-21,011.28-3,619

Finding the Fourth Proportional to 14,007.25, 21,011.28 and 3,619

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Solution

The fourth proportional to 14,007.25, 21,011.28 and 3,619 is: 5,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.25 : 21,011.28 = 3,619 : x
  2. Step 2: Convert to fraction form
    14,007.25/21,011.28 = 3,619/x
  3. Step 3: Cross multiply
    14,007.25x = 21,011.28 × 3,619
  4. Step 4: Simplify right side
    14,007.25x = 76,039,822.32
  5. Step 5: Solve for x
    x = 76,039,822.32/14,007.25
  6. Step 6: Final answer
    x = 5,428.60

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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.