Home / 38,491.10-57,736.65-12,195.80

Finding the Fourth Proportional to 38,491.10, 57,736.65 and 12,195.80

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Solution

The fourth proportional to 38,491.10, 57,736.65 and 12,195.80 is: 18,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491.10 : 57,736.65 = 12,195.80 : x
  2. Step 2: Convert to fraction form
    38,491.10/57,736.65 = 12,195.80/x
  3. Step 3: Cross multiply
    38,491.10x = 57,736.65 × 12,195.80
  4. Step 4: Simplify right side
    38,491.10x = 704,144,636.07
  5. Step 5: Solve for x
    x = 704,144,636.07/38,491.10
  6. Step 6: Final answer
    x = 18,293.70

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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.