Home / 39,204.75-58,780.40-12,905.67

Finding the Fourth Proportional to 39,204.75, 58,780.40 and 12,905.67

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Solution

The fourth proportional to 39,204.75, 58,780.40 and 12,905.67 is: 19,349.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,204.75 : 58,780.40 = 12,905.67 : x
  2. Step 2: Convert to fraction form
    39,204.75/58,780.40 = 12,905.67/x
  3. Step 3: Cross multiply
    39,204.75x = 58,780.40 × 12,905.67
  4. Step 4: Simplify right side
    39,204.75x = 758,600,380.34
  5. Step 5: Solve for x
    x = 758,600,380.34/39,204.75
  6. Step 6: Final answer
    x = 19,349.71

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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.