Home / 39,278.51-58,904.55-12,617.96

Finding the Fourth Proportional to 39,278.51, 58,904.55 and 12,617.96

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Solution

The fourth proportional to 39,278.51, 58,904.55 and 12,617.96 is: 18,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.51 : 58,904.55 = 12,617.96 : x
  2. Step 2: Convert to fraction form
    39,278.51/58,904.55 = 12,617.96/x
  3. Step 3: Cross multiply
    39,278.51x = 58,904.55 × 12,617.96
  4. Step 4: Simplify right side
    39,278.51x = 743,255,255.72
  5. Step 5: Solve for x
    x = 743,255,255.72/39,278.51
  6. Step 6: Final answer
    x = 18,922.69

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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.