Home / 39,405.60-59,119.38-21,887.72

Finding the Fourth Proportional to 39,405.60, 59,119.38 and 21,887.72

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Solution

The fourth proportional to 39,405.60, 59,119.38 and 21,887.72 is: 32,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.60 : 59,119.38 = 21,887.72 : x
  2. Step 2: Convert to fraction form
    39,405.60/59,119.38 = 21,887.72/x
  3. Step 3: Cross multiply
    39,405.60x = 59,119.38 × 21,887.72
  4. Step 4: Simplify right side
    39,405.60x = 1,293,988,436.01
  5. Step 5: Solve for x
    x = 1,293,988,436.01/39,405.60
  6. Step 6: Final answer
    x = 32,837.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.