Home / 30,691.88-46,037.68-8,505.19

Finding the Fourth Proportional to 30,691.88, 46,037.68 and 8,505.19

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Solution

The fourth proportional to 30,691.88, 46,037.68 and 8,505.19 is: 12,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691.88 : 46,037.68 = 8,505.19 : x
  2. Step 2: Convert to fraction form
    30,691.88/46,037.68 = 8,505.19/x
  3. Step 3: Cross multiply
    30,691.88x = 46,037.68 × 8,505.19
  4. Step 4: Simplify right side
    30,691.88x = 391,559,079.20
  5. Step 5: Solve for x
    x = 391,559,079.20/30,691.88
  6. Step 6: Final answer
    x = 12,757.74

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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.