Home / 39,873.20-55,031.09-30,297.48

Finding the Fourth Proportional to 39,873.20, 55,031.09 and 30,297.48

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Solution

The fourth proportional to 39,873.20, 55,031.09 and 30,297.48 is: 41,815.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,873.20 : 55,031.09 = 30,297.48 : x
  2. Step 2: Convert to fraction form
    39,873.20/55,031.09 = 30,297.48/x
  3. Step 3: Cross multiply
    39,873.20x = 55,031.09 × 30,297.48
  4. Step 4: Simplify right side
    39,873.20x = 1,667,303,197.17
  5. Step 5: Solve for x
    x = 1,667,303,197.17/39,873.20
  6. Step 6: Final answer
    x = 41,815.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.