Home / 22,029.75-30,387.21-13,070.91

Finding the Fourth Proportional to 22,029.75, 30,387.21 and 13,070.91

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Solution

The fourth proportional to 22,029.75, 30,387.21 and 13,070.91 is: 18,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,029.75 : 30,387.21 = 13,070.91 : x
  2. Step 2: Convert to fraction form
    22,029.75/30,387.21 = 13,070.91/x
  3. Step 3: Cross multiply
    22,029.75x = 30,387.21 × 13,070.91
  4. Step 4: Simplify right side
    22,029.75x = 397,188,487.06
  5. Step 5: Solve for x
    x = 397,188,487.06/22,029.75
  6. Step 6: Final answer
    x = 18,029.64

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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.