Home / 38,986.63-53,797.51-28,783.09

Finding the Fourth Proportional to 38,986.63, 53,797.51 and 28,783.09

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Solution

The fourth proportional to 38,986.63, 53,797.51 and 28,783.09 is: 39,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.63 : 53,797.51 = 28,783.09 : x
  2. Step 2: Convert to fraction form
    38,986.63/53,797.51 = 28,783.09/x
  3. Step 3: Cross multiply
    38,986.63x = 53,797.51 × 28,783.09
  4. Step 4: Simplify right side
    38,986.63x = 1,548,458,428.19
  5. Step 5: Solve for x
    x = 1,548,458,428.19/38,986.63
  6. Step 6: Final answer
    x = 39,717.68

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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.