Home / 39,511.57-54,525.33-21,606.19

Finding the Fourth Proportional to 39,511.57, 54,525.33 and 21,606.19

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Solution

The fourth proportional to 39,511.57, 54,525.33 and 21,606.19 is: 29,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.57 : 54,525.33 = 21,606.19 : x
  2. Step 2: Convert to fraction form
    39,511.57/54,525.33 = 21,606.19/x
  3. Step 3: Cross multiply
    39,511.57x = 54,525.33 × 21,606.19
  4. Step 4: Simplify right side
    39,511.57x = 1,178,084,749.42
  5. Step 5: Solve for x
    x = 1,178,084,749.42/39,511.57
  6. Step 6: Final answer
    x = 29,816.20

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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.