Home / 31,289.79-43,183.01-17,863.07

Finding the Fourth Proportional to 31,289.79, 43,183.01 and 17,863.07

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Solution

The fourth proportional to 31,289.79, 43,183.01 and 17,863.07 is: 24,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.79 : 43,183.01 = 17,863.07 : x
  2. Step 2: Convert to fraction form
    31,289.79/43,183.01 = 17,863.07/x
  3. Step 3: Cross multiply
    31,289.79x = 43,183.01 × 17,863.07
  4. Step 4: Simplify right side
    31,289.79x = 771,381,130.44
  5. Step 5: Solve for x
    x = 771,381,130.44/31,289.79
  6. Step 6: Final answer
    x = 24,652.81

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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.