Home / 39,887.19-55,036.53-30,324.60

Finding the Fourth Proportional to 39,887.19, 55,036.53 and 30,324.60

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Solution

The fourth proportional to 39,887.19, 55,036.53 and 30,324.60 is: 41,842.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,887.19 : 55,036.53 = 30,324.60 : x
  2. Step 2: Convert to fraction form
    39,887.19/55,036.53 = 30,324.60/x
  3. Step 3: Cross multiply
    39,887.19x = 55,036.53 × 30,324.60
  4. Step 4: Simplify right side
    39,887.19x = 1,668,960,757.64
  5. Step 5: Solve for x
    x = 1,668,960,757.64/39,887.19
  6. Step 6: Final answer
    x = 41,842.02

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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.