Home / 31,820.80-43,912.08-17,674.24

Finding the Fourth Proportional to 31,820.80, 43,912.08 and 17,674.24

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Solution

The fourth proportional to 31,820.80, 43,912.08 and 17,674.24 is: 24,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,820.80 : 43,912.08 = 17,674.24 : x
  2. Step 2: Convert to fraction form
    31,820.80/43,912.08 = 17,674.24/x
  3. Step 3: Cross multiply
    31,820.80x = 43,912.08 × 17,674.24
  4. Step 4: Simplify right side
    31,820.80x = 776,112,640.82
  5. Step 5: Solve for x
    x = 776,112,640.82/31,820.80
  6. Step 6: Final answer
    x = 24,390.10

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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.