Home / 39,208.06-54,107.33-21,303.11

Finding the Fourth Proportional to 39,208.06, 54,107.33 and 21,303.11

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Solution

The fourth proportional to 39,208.06, 54,107.33 and 21,303.11 is: 29,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,208.06 : 54,107.33 = 21,303.11 : x
  2. Step 2: Convert to fraction form
    39,208.06/54,107.33 = 21,303.11/x
  3. Step 3: Cross multiply
    39,208.06x = 54,107.33 × 21,303.11
  4. Step 4: Simplify right side
    39,208.06x = 1,152,654,431.55
  5. Step 5: Solve for x
    x = 1,152,654,431.55/39,208.06
  6. Step 6: Final answer
    x = 29,398.40

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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.