Home / 31,850.77-43,878.09-22,272.76

Finding the Fourth Proportional to 31,850.77, 43,878.09 and 22,272.76

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Solution

The fourth proportional to 31,850.77, 43,878.09 and 22,272.76 is: 30,683.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,850.77 : 43,878.09 = 22,272.76 : x
  2. Step 2: Convert to fraction form
    31,850.77/43,878.09 = 22,272.76/x
  3. Step 3: Cross multiply
    31,850.77x = 43,878.09 × 22,272.76
  4. Step 4: Simplify right side
    31,850.77x = 977,286,167.83
  5. Step 5: Solve for x
    x = 977,286,167.83/31,850.77
  6. Step 6: Final answer
    x = 30,683.28

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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.