Home / 39,207.92-58,814.51-12,912.89

Finding the Fourth Proportional to 39,207.92, 58,814.51 and 12,912.89

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Solution

The fourth proportional to 39,207.92, 58,814.51 and 12,912.89 is: 19,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,207.92 : 58,814.51 = 12,912.89 : x
  2. Step 2: Convert to fraction form
    39,207.92/58,814.51 = 12,912.89/x
  3. Step 3: Cross multiply
    39,207.92x = 58,814.51 × 12,912.89
  4. Step 4: Simplify right side
    39,207.92x = 759,464,939.40
  5. Step 5: Solve for x
    x = 759,464,939.40/39,207.92
  6. Step 6: Final answer
    x = 19,370.19

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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.