Home / 36,381.12-54,594.72-20,829.12

Finding the Fourth Proportional to 36,381.12, 54,594.72 and 20,829.12

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Solution

The fourth proportional to 36,381.12, 54,594.72 and 20,829.12 is: 31,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,381.12 : 54,594.72 = 20,829.12 : x
  2. Step 2: Convert to fraction form
    36,381.12/54,594.72 = 20,829.12/x
  3. Step 3: Cross multiply
    36,381.12x = 54,594.72 × 20,829.12
  4. Step 4: Simplify right side
    36,381.12x = 1,137,159,974.25
  5. Step 5: Solve for x
    x = 1,137,159,974.25/36,381.12
  6. Step 6: Final answer
    x = 31,256.87

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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.