Home / 39,656.39-54,727.35-21,752.15

Finding the Fourth Proportional to 39,656.39, 54,727.35 and 21,752.15

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Solution

The fourth proportional to 39,656.39, 54,727.35 and 21,752.15 is: 30,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656.39 : 54,727.35 = 21,752.15 : x
  2. Step 2: Convert to fraction form
    39,656.39/54,727.35 = 21,752.15/x
  3. Step 3: Cross multiply
    39,656.39x = 54,727.35 × 21,752.15
  4. Step 4: Simplify right side
    39,656.39x = 1,190,437,526.30
  5. Step 5: Solve for x
    x = 1,190,437,526.30/39,656.39
  6. Step 6: Final answer
    x = 30,018.81

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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.