Home / 18,953.28-28,395.36-13,968

Finding the Fourth Proportional to 18,953.28, 28,395.36 and 13,968

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Solution

The fourth proportional to 18,953.28, 28,395.36 and 13,968 is: 20,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.28 : 28,395.36 = 13,968 : x
  2. Step 2: Convert to fraction form
    18,953.28/28,395.36 = 13,968/x
  3. Step 3: Cross multiply
    18,953.28x = 28,395.36 × 13,968
  4. Step 4: Simplify right side
    18,953.28x = 396,626,388.48
  5. Step 5: Solve for x
    x = 396,626,388.48/18,953.28
  6. Step 6: Final answer
    x = 20,926.53

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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.