Home / 39,961.65-55,143.15-22,055.51

Finding the Fourth Proportional to 39,961.65, 55,143.15 and 22,055.51

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Solution

The fourth proportional to 39,961.65, 55,143.15 and 22,055.51 is: 30,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,961.65 : 55,143.15 = 22,055.51 : x
  2. Step 2: Convert to fraction form
    39,961.65/55,143.15 = 22,055.51/x
  3. Step 3: Cross multiply
    39,961.65x = 55,143.15 × 22,055.51
  4. Step 4: Simplify right side
    39,961.65x = 1,216,210,020.54
  5. Step 5: Solve for x
    x = 1,216,210,020.54/39,961.65
  6. Step 6: Final answer
    x = 30,434.43

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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.