Home / 36,128.16-54,198.29-12,434.74

Finding the Fourth Proportional to 36,128.16, 54,198.29 and 12,434.74

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Solution

The fourth proportional to 36,128.16, 54,198.29 and 12,434.74 is: 18,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.16 : 54,198.29 = 12,434.74 : x
  2. Step 2: Convert to fraction form
    36,128.16/54,198.29 = 12,434.74/x
  3. Step 3: Cross multiply
    36,128.16x = 54,198.29 × 12,434.74
  4. Step 4: Simplify right side
    36,128.16x = 673,941,540.19
  5. Step 5: Solve for x
    x = 673,941,540.19/36,128.16
  6. Step 6: Final answer
    x = 18,654.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.