Home / 21,145.23-29,114.03-17,951.91

Finding the Fourth Proportional to 21,145.23, 29,114.03 and 17,951.91

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Solution

The fourth proportional to 21,145.23, 29,114.03 and 17,951.91 is: 24,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,145.23 : 29,114.03 = 17,951.91 : x
  2. Step 2: Convert to fraction form
    21,145.23/29,114.03 = 17,951.91/x
  3. Step 3: Cross multiply
    21,145.23x = 29,114.03 × 17,951.91
  4. Step 4: Simplify right side
    21,145.23x = 522,652,356.54
  5. Step 5: Solve for x
    x = 522,652,356.54/21,145.23
  6. Step 6: Final answer
    x = 24,717.27

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1.5x scale

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.