Home / 39,819.65-59,680.26-20,103.84

Finding the Fourth Proportional to 39,819.65, 59,680.26 and 20,103.84

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Solution

The fourth proportional to 39,819.65, 59,680.26 and 20,103.84 is: 30,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.65 : 59,680.26 = 20,103.84 : x
  2. Step 2: Convert to fraction form
    39,819.65/59,680.26 = 20,103.84/x
  3. Step 3: Cross multiply
    39,819.65x = 59,680.26 × 20,103.84
  4. Step 4: Simplify right side
    39,819.65x = 1,199,802,398.20
  5. Step 5: Solve for x
    x = 1,199,802,398.20/39,819.65
  6. Step 6: Final answer
    x = 30,130.92

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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.