Home / 38,693.63-57,962.68-20,186.75

Finding the Fourth Proportional to 38,693.63, 57,962.68 and 20,186.75

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Solution

The fourth proportional to 38,693.63, 57,962.68 and 20,186.75 is: 30,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,693.63 : 57,962.68 = 20,186.75 : x
  2. Step 2: Convert to fraction form
    38,693.63/57,962.68 = 20,186.75/x
  3. Step 3: Cross multiply
    38,693.63x = 57,962.68 × 20,186.75
  4. Step 4: Simplify right side
    38,693.63x = 1,170,078,130.49
  5. Step 5: Solve for x
    x = 1,170,078,130.49/38,693.63
  6. Step 6: Final answer
    x = 30,239.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.