Home / 31,703.65-43,750.96-18,274.81

Finding the Fourth Proportional to 31,703.65, 43,750.96 and 18,274.81

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Solution

The fourth proportional to 31,703.65, 43,750.96 and 18,274.81 is: 25,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,703.65 : 43,750.96 = 18,274.81 : x
  2. Step 2: Convert to fraction form
    31,703.65/43,750.96 = 18,274.81/x
  3. Step 3: Cross multiply
    31,703.65x = 43,750.96 × 18,274.81
  4. Step 4: Simplify right side
    31,703.65x = 799,540,481.32
  5. Step 5: Solve for x
    x = 799,540,481.32/31,703.65
  6. Step 6: Final answer
    x = 25,219.19

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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.