Home / 20,157.36-27,807.48-17,358

Finding the Fourth Proportional to 20,157.36, 27,807.48 and 17,358

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Solution

The fourth proportional to 20,157.36, 27,807.48 and 17,358 is: 23,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.36 : 27,807.48 = 17,358 : x
  2. Step 2: Convert to fraction form
    20,157.36/27,807.48 = 17,358/x
  3. Step 3: Cross multiply
    20,157.36x = 27,807.48 × 17,358
  4. Step 4: Simplify right side
    20,157.36x = 482,682,237.84
  5. Step 5: Solve for x
    x = 482,682,237.84/20,157.36
  6. Step 6: Final answer
    x = 23,945.71

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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.