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Finding the Fourth Proportional to 22,448.98, 30,978.84 and 12,377.26

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Solution

The fourth proportional to 22,448.98, 30,978.84 and 12,377.26 is: 17,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,448.98 : 30,978.84 = 12,377.26 : x
  2. Step 2: Convert to fraction form
    22,448.98/30,978.84 = 12,377.26/x
  3. Step 3: Cross multiply
    22,448.98x = 30,978.84 × 12,377.26
  4. Step 4: Simplify right side
    22,448.98x = 383,433,157.18
  5. Step 5: Solve for x
    x = 383,433,157.18/22,448.98
  6. Step 6: Final answer
    x = 17,080.20

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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.