Home / 39,104.78-58,642.58-20,376.77

Finding the Fourth Proportional to 39,104.78, 58,642.58 and 20,376.77

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Solution

The fourth proportional to 39,104.78, 58,642.58 and 20,376.77 is: 30,557.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,104.78 : 58,642.58 = 20,376.77 : x
  2. Step 2: Convert to fraction form
    39,104.78/58,642.58 = 20,376.77/x
  3. Step 3: Cross multiply
    39,104.78x = 58,642.58 × 20,376.77
  4. Step 4: Simplify right side
    39,104.78x = 1,194,946,122.60
  5. Step 5: Solve for x
    x = 1,194,946,122.60/39,104.78
  6. Step 6: Final answer
    x = 30,557.55

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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.