Home / 39,195.20-58,735.20-15,780.80

Finding the Fourth Proportional to 39,195.20, 58,735.20 and 15,780.80

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Solution

The fourth proportional to 39,195.20, 58,735.20 and 15,780.80 is: 23,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,195.20 : 58,735.20 = 15,780.80 : x
  2. Step 2: Convert to fraction form
    39,195.20/58,735.20 = 15,780.80/x
  3. Step 3: Cross multiply
    39,195.20x = 58,735.20 × 15,780.80
  4. Step 4: Simplify right side
    39,195.20x = 926,888,444.16
  5. Step 5: Solve for x
    x = 926,888,444.16/39,195.20
  6. Step 6: Final answer
    x = 23,648.01

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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.