Home / 38,992.39-58,496.48-12,690.07

Finding the Fourth Proportional to 38,992.39, 58,496.48 and 12,690.07

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Solution

The fourth proportional to 38,992.39, 58,496.48 and 12,690.07 is: 19,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992.39 : 58,496.48 = 12,690.07 : x
  2. Step 2: Convert to fraction form
    38,992.39/58,496.48 = 12,690.07/x
  3. Step 3: Cross multiply
    38,992.39x = 58,496.48 × 12,690.07
  4. Step 4: Simplify right side
    38,992.39x = 742,324,425.95
  5. Step 5: Solve for x
    x = 742,324,425.95/38,992.39
  6. Step 6: Final answer
    x = 19,037.67

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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.