Home / 31,821.80-43,913.54-17,674.28

Finding the Fourth Proportional to 31,821.80, 43,913.54 and 17,674.28

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Solution

The fourth proportional to 31,821.80, 43,913.54 and 17,674.28 is: 24,390.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.80 : 43,913.54 = 17,674.28 : x
  2. Step 2: Convert to fraction form
    31,821.80/43,913.54 = 17,674.28/x
  3. Step 3: Cross multiply
    31,821.80x = 43,913.54 × 17,674.28
  4. Step 4: Simplify right side
    31,821.80x = 776,140,201.75
  5. Step 5: Solve for x
    x = 776,140,201.75/31,821.80
  6. Step 6: Final answer
    x = 24,390.20

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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.