Home / 38,551.56-53,205.48-21,785.64

Finding the Fourth Proportional to 38,551.56, 53,205.48 and 21,785.64

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Solution

The fourth proportional to 38,551.56, 53,205.48 and 21,785.64 is: 30,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,551.56 : 53,205.48 = 21,785.64 : x
  2. Step 2: Convert to fraction form
    38,551.56/53,205.48 = 21,785.64/x
  3. Step 3: Cross multiply
    38,551.56x = 53,205.48 × 21,785.64
  4. Step 4: Simplify right side
    38,551.56x = 1,159,115,433.31
  5. Step 5: Solve for x
    x = 1,159,115,433.31/38,551.56
  6. Step 6: Final answer
    x = 30,066.63

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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.