Home / 39,570.57-54,605.03-21,665.61

Finding the Fourth Proportional to 39,570.57, 54,605.03 and 21,665.61

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Solution

The fourth proportional to 39,570.57, 54,605.03 and 21,665.61 is: 29,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.57 : 54,605.03 = 21,665.61 : x
  2. Step 2: Convert to fraction form
    39,570.57/54,605.03 = 21,665.61/x
  3. Step 3: Cross multiply
    39,570.57x = 54,605.03 × 21,665.61
  4. Step 4: Simplify right side
    39,570.57x = 1,183,051,175.69
  5. Step 5: Solve for x
    x = 1,183,051,175.69/39,570.57
  6. Step 6: Final answer
    x = 29,897.25

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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.