Home / 39,138.50-58,716.26-12,842.25

Finding the Fourth Proportional to 39,138.50, 58,716.26 and 12,842.25

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Solution

The fourth proportional to 39,138.50, 58,716.26 and 12,842.25 is: 19,266.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.50 : 58,716.26 = 12,842.25 : x
  2. Step 2: Convert to fraction form
    39,138.50/58,716.26 = 12,842.25/x
  3. Step 3: Cross multiply
    39,138.50x = 58,716.26 × 12,842.25
  4. Step 4: Simplify right side
    39,138.50x = 754,048,889.99
  5. Step 5: Solve for x
    x = 754,048,889.99/39,138.50
  6. Step 6: Final answer
    x = 19,266.17

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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.