Home / 21,122.06-29,117.39-16,077.49

Finding the Fourth Proportional to 21,122.06, 29,117.39 and 16,077.49

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Solution

The fourth proportional to 21,122.06, 29,117.39 and 16,077.49 is: 22,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,122.06 : 29,117.39 = 16,077.49 : x
  2. Step 2: Convert to fraction form
    21,122.06/29,117.39 = 16,077.49/x
  3. Step 3: Cross multiply
    21,122.06x = 29,117.39 × 16,077.49
  4. Step 4: Simplify right side
    21,122.06x = 468,134,393.37
  5. Step 5: Solve for x
    x = 468,134,393.37/21,122.06
  6. Step 6: Final answer
    x = 22,163.30

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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.