Home / 38,670.39-57,993.22-12,368.88

Finding the Fourth Proportional to 38,670.39, 57,993.22 and 12,368.88

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Solution

The fourth proportional to 38,670.39, 57,993.22 and 12,368.88 is: 18,549.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,670.39 : 57,993.22 = 12,368.88 : x
  2. Step 2: Convert to fraction form
    38,670.39/57,993.22 = 12,368.88/x
  3. Step 3: Cross multiply
    38,670.39x = 57,993.22 × 12,368.88
  4. Step 4: Simplify right side
    38,670.39x = 717,311,178.99
  5. Step 5: Solve for x
    x = 717,311,178.99/38,670.39
  6. Step 6: Final answer
    x = 18,549.37

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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.