Home / 39,939.81-55,119.63-22,949.56

Finding the Fourth Proportional to 39,939.81, 55,119.63 and 22,949.56

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Solution

The fourth proportional to 39,939.81, 55,119.63 and 22,949.56 is: 31,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,939.81 : 55,119.63 = 22,949.56 : x
  2. Step 2: Convert to fraction form
    39,939.81/55,119.63 = 22,949.56/x
  3. Step 3: Cross multiply
    39,939.81x = 55,119.63 × 22,949.56
  4. Step 4: Simplify right side
    39,939.81x = 1,264,970,865.52
  5. Step 5: Solve for x
    x = 1,264,970,865.52/39,939.81
  6. Step 6: Final answer
    x = 31,671.93

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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.