Home / 39,538.96-54,583.68-30,566.20

Finding the Fourth Proportional to 39,538.96, 54,583.68 and 30,566.20

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Solution

The fourth proportional to 39,538.96, 54,583.68 and 30,566.20 is: 42,196.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,538.96 : 54,583.68 = 30,566.20 : x
  2. Step 2: Convert to fraction form
    39,538.96/54,583.68 = 30,566.20/x
  3. Step 3: Cross multiply
    39,538.96x = 54,583.68 × 30,566.20
  4. Step 4: Simplify right side
    39,538.96x = 1,668,415,679.62
  5. Step 5: Solve for x
    x = 1,668,415,679.62/39,538.96
  6. Step 6: Final answer
    x = 42,196.75

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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.