Home / 39,143.47-54,014.29-22,145.62

Finding the Fourth Proportional to 39,143.47, 54,014.29 and 22,145.62

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Solution

The fourth proportional to 39,143.47, 54,014.29 and 22,145.62 is: 30,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.47 : 54,014.29 = 22,145.62 : x
  2. Step 2: Convert to fraction form
    39,143.47/54,014.29 = 22,145.62/x
  3. Step 3: Cross multiply
    39,143.47x = 54,014.29 × 22,145.62
  4. Step 4: Simplify right side
    39,143.47x = 1,196,179,940.91
  5. Step 5: Solve for x
    x = 1,196,179,940.91/39,143.47
  6. Step 6: Final answer
    x = 30,558.86

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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.