Home / 39,143.42-54,020.58-22,147.66

Finding the Fourth Proportional to 39,143.42, 54,020.58 and 22,147.66

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Solution

The fourth proportional to 39,143.42, 54,020.58 and 22,147.66 is: 30,565.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.42 : 54,020.58 = 22,147.66 : x
  2. Step 2: Convert to fraction form
    39,143.42/54,020.58 = 22,147.66/x
  3. Step 3: Cross multiply
    39,143.42x = 54,020.58 × 22,147.66
  4. Step 4: Simplify right side
    39,143.42x = 1,196,429,168.74
  5. Step 5: Solve for x
    x = 1,196,429,168.74/39,143.42
  6. Step 6: Final answer
    x = 30,565.27

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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.