Home / 22,770.07-31,418.75-12,698.12

Finding the Fourth Proportional to 22,770.07, 31,418.75 and 12,698.12

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Solution

The fourth proportional to 22,770.07, 31,418.75 and 12,698.12 is: 17,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,770.07 : 31,418.75 = 12,698.12 : x
  2. Step 2: Convert to fraction form
    22,770.07/31,418.75 = 12,698.12/x
  3. Step 3: Cross multiply
    22,770.07x = 31,418.75 × 12,698.12
  4. Step 4: Simplify right side
    22,770.07x = 398,959,168.04
  5. Step 5: Solve for x
    x = 398,959,168.04/22,770.07
  6. Step 6: Final answer
    x = 17,521.21

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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.