Home / 22,420.15-30,940.36-12,348.92

Finding the Fourth Proportional to 22,420.15, 30,940.36 and 12,348.92

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Solution

The fourth proportional to 22,420.15, 30,940.36 and 12,348.92 is: 17,041.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.15 : 30,940.36 = 12,348.92 : x
  2. Step 2: Convert to fraction form
    22,420.15/30,940.36 = 12,348.92/x
  3. Step 3: Cross multiply
    22,420.15x = 30,940.36 × 12,348.92
  4. Step 4: Simplify right side
    22,420.15x = 382,080,076.89
  5. Step 5: Solve for x
    x = 382,080,076.89/22,420.15
  6. Step 6: Final answer
    x = 17,041.82

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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.