Home / 30,780.44-46,167.20-8,292.78

Finding the Fourth Proportional to 30,780.44, 46,167.20 and 8,292.78

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Solution

The fourth proportional to 30,780.44, 46,167.20 and 8,292.78 is: 12,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.44 : 46,167.20 = 8,292.78 : x
  2. Step 2: Convert to fraction form
    30,780.44/46,167.20 = 8,292.78/x
  3. Step 3: Cross multiply
    30,780.44x = 46,167.20 × 8,292.78
  4. Step 4: Simplify right side
    30,780.44x = 382,854,642.22
  5. Step 5: Solve for x
    x = 382,854,642.22/30,780.44
  6. Step 6: Final answer
    x = 12,438.24

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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.