Home / 31,186.86-43,022.88-22,675.80

Finding the Fourth Proportional to 31,186.86, 43,022.88 and 22,675.80

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Solution

The fourth proportional to 31,186.86, 43,022.88 and 22,675.80 is: 31,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186.86 : 43,022.88 = 22,675.80 : x
  2. Step 2: Convert to fraction form
    31,186.86/43,022.88 = 22,675.80/x
  3. Step 3: Cross multiply
    31,186.86x = 43,022.88 × 22,675.80
  4. Step 4: Simplify right side
    31,186.86x = 975,578,222.30
  5. Step 5: Solve for x
    x = 975,578,222.30/31,186.86
  6. Step 6: Final answer
    x = 31,281.71

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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.