Home / 31,311.16-43,207.22-18,563.68

Finding the Fourth Proportional to 31,311.16, 43,207.22 and 18,563.68

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Solution

The fourth proportional to 31,311.16, 43,207.22 and 18,563.68 is: 25,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.16 : 43,207.22 = 18,563.68 : x
  2. Step 2: Convert to fraction form
    31,311.16/43,207.22 = 18,563.68/x
  3. Step 3: Cross multiply
    31,311.16x = 43,207.22 × 18,563.68
  4. Step 4: Simplify right side
    31,311.16x = 802,085,106.19
  5. Step 5: Solve for x
    x = 802,085,106.19/31,311.16
  6. Step 6: Final answer
    x = 25,616.59

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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.