Home / 38,934-53,738.64-22,176.72

Finding the Fourth Proportional to 38,934, 53,738.64 and 22,176.72

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Solution

The fourth proportional to 38,934, 53,738.64 and 22,176.72 is: 30,609.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,934 : 53,738.64 = 22,176.72 : x
  2. Step 2: Convert to fraction form
    38,934/53,738.64 = 22,176.72/x
  3. Step 3: Cross multiply
    38,934x = 53,738.64 × 22,176.72
  4. Step 4: Simplify right side
    38,934x = 1,191,746,772.46
  5. Step 5: Solve for x
    x = 1,191,746,772.46/38,934
  6. Step 6: Final answer
    x = 30,609.41

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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.