Home / 31,185.36-43,020.81-22,674.30

Finding the Fourth Proportional to 31,185.36, 43,020.81 and 22,674.30

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Solution

The fourth proportional to 31,185.36, 43,020.81 and 22,674.30 is: 31,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,185.36 : 43,020.81 = 22,674.30 : x
  2. Step 2: Convert to fraction form
    31,185.36/43,020.81 = 22,674.30/x
  3. Step 3: Cross multiply
    31,185.36x = 43,020.81 × 22,674.30
  4. Step 4: Simplify right side
    31,185.36x = 975,466,752.18
  5. Step 5: Solve for x
    x = 975,466,752.18/31,185.36
  6. Step 6: Final answer
    x = 31,279.64

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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.