Home / 39,564.21-54,599.57-21,659.16

Finding the Fourth Proportional to 39,564.21, 54,599.57 and 21,659.16

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Solution

The fourth proportional to 39,564.21, 54,599.57 and 21,659.16 is: 29,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,564.21 : 54,599.57 = 21,659.16 : x
  2. Step 2: Convert to fraction form
    39,564.21/54,599.57 = 21,659.16/x
  3. Step 3: Cross multiply
    39,564.21x = 54,599.57 × 21,659.16
  4. Step 4: Simplify right side
    39,564.21x = 1,182,580,693.11
  5. Step 5: Solve for x
    x = 1,182,580,693.11/39,564.21
  6. Step 6: Final answer
    x = 29,890.16

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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.