Home / 38,613.05-57,907.23-12,311.63

Finding the Fourth Proportional to 38,613.05, 57,907.23 and 12,311.63

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Solution

The fourth proportional to 38,613.05, 57,907.23 and 12,311.63 is: 18,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,613.05 : 57,907.23 = 12,311.63 : x
  2. Step 2: Convert to fraction form
    38,613.05/57,907.23 = 12,311.63/x
  3. Step 3: Cross multiply
    38,613.05x = 57,907.23 × 12,311.63
  4. Step 4: Simplify right side
    38,613.05x = 712,932,390.08
  5. Step 5: Solve for x
    x = 712,932,390.08/38,613.05
  6. Step 6: Final answer
    x = 18,463.51

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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.