Home / 39,800.30-54,923.09-21,895.16

Finding the Fourth Proportional to 39,800.30, 54,923.09 and 21,895.16

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Solution

The fourth proportional to 39,800.30, 54,923.09 and 21,895.16 is: 30,214.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,800.30 : 54,923.09 = 21,895.16 : x
  2. Step 2: Convert to fraction form
    39,800.30/54,923.09 = 21,895.16/x
  3. Step 3: Cross multiply
    39,800.30x = 54,923.09 × 21,895.16
  4. Step 4: Simplify right side
    39,800.30x = 1,202,549,459.15
  5. Step 5: Solve for x
    x = 1,202,549,459.15/39,800.30
  6. Step 6: Final answer
    x = 30,214.58

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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.