Home / 38,878.28-53,650.86-21,883.46

Finding the Fourth Proportional to 38,878.28, 53,650.86 and 21,883.46

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Solution

The fourth proportional to 38,878.28, 53,650.86 and 21,883.46 is: 30,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,878.28 : 53,650.86 = 21,883.46 : x
  2. Step 2: Convert to fraction form
    38,878.28/53,650.86 = 21,883.46/x
  3. Step 3: Cross multiply
    38,878.28x = 53,650.86 × 21,883.46
  4. Step 4: Simplify right side
    38,878.28x = 1,174,066,448.78
  5. Step 5: Solve for x
    x = 1,174,066,448.78/38,878.28
  6. Step 6: Final answer
    x = 30,198.52

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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.