Home / 39,286.91-58,912.10-14,309.57

Finding the Fourth Proportional to 39,286.91, 58,912.10 and 14,309.57

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Solution

The fourth proportional to 39,286.91, 58,912.10 and 14,309.57 is: 21,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286.91 : 58,912.10 = 14,309.57 : x
  2. Step 2: Convert to fraction form
    39,286.91/58,912.10 = 14,309.57/x
  3. Step 3: Cross multiply
    39,286.91x = 58,912.10 × 14,309.57
  4. Step 4: Simplify right side
    39,286.91x = 843,006,747.25
  5. Step 5: Solve for x
    x = 843,006,747.25/39,286.91
  6. Step 6: Final answer
    x = 21,457.70

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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.