Home / 28,197.28-38,913.42-15,622

Finding the Fourth Proportional to 28,197.28, 38,913.42 and 15,622

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Solution

The fourth proportional to 28,197.28, 38,913.42 and 15,622 is: 21,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.28 : 38,913.42 = 15,622 : x
  2. Step 2: Convert to fraction form
    28,197.28/38,913.42 = 15,622/x
  3. Step 3: Cross multiply
    28,197.28x = 38,913.42 × 15,622
  4. Step 4: Simplify right side
    28,197.28x = 607,905,447.24
  5. Step 5: Solve for x
    x = 607,905,447.24/28,197.28
  6. Step 6: Final answer
    x = 21,559.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.