Home / 31,703.32-43,760.28-18,283.51

Finding the Fourth Proportional to 31,703.32, 43,760.28 and 18,283.51

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Solution

The fourth proportional to 31,703.32, 43,760.28 and 18,283.51 is: 25,236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.32 : 43,760.28 = 18,283.51 : x
  2. Step 2: Convert to fraction form
    31,703.32/43,760.28 = 18,283.51/x
  3. Step 3: Cross multiply
    31,703.32x = 43,760.28 × 18,283.51
  4. Step 4: Simplify right side
    31,703.32x = 800,091,516.98
  5. Step 5: Solve for x
    x = 800,091,516.98/31,703.32
  6. Step 6: Final answer
    x = 25,236.84

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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.