Home / 39,749.76-59,620.80-20,020.48

Finding the Fourth Proportional to 39,749.76, 59,620.80 and 20,020.48

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Solution

The fourth proportional to 39,749.76, 59,620.80 and 20,020.48 is: 30,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749.76 : 59,620.80 = 20,020.48 : x
  2. Step 2: Convert to fraction form
    39,749.76/59,620.80 = 20,020.48/x
  3. Step 3: Cross multiply
    39,749.76x = 59,620.80 × 20,020.48
  4. Step 4: Simplify right side
    39,749.76x = 1,193,637,033.98
  5. Step 5: Solve for x
    x = 1,193,637,033.98/39,749.76
  6. Step 6: Final answer
    x = 30,028.79

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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.