Home / 39,040.40-58,564.60-12,747.12

Finding the Fourth Proportional to 39,040.40, 58,564.60 and 12,747.12

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Solution

The fourth proportional to 39,040.40, 58,564.60 and 12,747.12 is: 19,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040.40 : 58,564.60 = 12,747.12 : x
  2. Step 2: Convert to fraction form
    39,040.40/58,564.60 = 12,747.12/x
  3. Step 3: Cross multiply
    39,040.40x = 58,564.60 × 12,747.12
  4. Step 4: Simplify right side
    39,040.40x = 746,529,983.95
  5. Step 5: Solve for x
    x = 746,529,983.95/39,040.40
  6. Step 6: Final answer
    x = 19,121.99

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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.