Home / 39,119.99-58,688.15-12,822.66

Finding the Fourth Proportional to 39,119.99, 58,688.15 and 12,822.66

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Solution

The fourth proportional to 39,119.99, 58,688.15 and 12,822.66 is: 19,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,119.99 : 58,688.15 = 12,822.66 : x
  2. Step 2: Convert to fraction form
    39,119.99/58,688.15 = 12,822.66/x
  3. Step 3: Cross multiply
    39,119.99x = 58,688.15 × 12,822.66
  4. Step 4: Simplify right side
    39,119.99x = 752,538,129.37
  5. Step 5: Solve for x
    x = 752,538,129.37/39,119.99
  6. Step 6: Final answer
    x = 19,236.67

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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.