Home / 39,959.68-55,143.80-22,055.02

Finding the Fourth Proportional to 39,959.68, 55,143.80 and 22,055.02

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Solution

The fourth proportional to 39,959.68, 55,143.80 and 22,055.02 is: 30,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959.68 : 55,143.80 = 22,055.02 : x
  2. Step 2: Convert to fraction form
    39,959.68/55,143.80 = 22,055.02/x
  3. Step 3: Cross multiply
    39,959.68x = 55,143.80 × 22,055.02
  4. Step 4: Simplify right side
    39,959.68x = 1,216,197,611.88
  5. Step 5: Solve for x
    x = 1,216,197,611.88/39,959.68
  6. Step 6: Final answer
    x = 30,435.62

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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.