Home / 38,915.91-53,707.26-21,923.49

Finding the Fourth Proportional to 38,915.91, 53,707.26 and 21,923.49

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Solution

The fourth proportional to 38,915.91, 53,707.26 and 21,923.49 is: 30,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,915.91 : 53,707.26 = 21,923.49 : x
  2. Step 2: Convert to fraction form
    38,915.91/53,707.26 = 21,923.49/x
  3. Step 3: Cross multiply
    38,915.91x = 53,707.26 × 21,923.49
  4. Step 4: Simplify right side
    38,915.91x = 1,177,450,659.75
  5. Step 5: Solve for x
    x = 1,177,450,659.75/38,915.91
  6. Step 6: Final answer
    x = 30,256.28

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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.