Home / 39,109.93-53,966.04-21,882.19

Finding the Fourth Proportional to 39,109.93, 53,966.04 and 21,882.19

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Solution

The fourth proportional to 39,109.93, 53,966.04 and 21,882.19 is: 30,194.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109.93 : 53,966.04 = 21,882.19 : x
  2. Step 2: Convert to fraction form
    39,109.93/53,966.04 = 21,882.19/x
  3. Step 3: Cross multiply
    39,109.93x = 53,966.04 × 21,882.19
  4. Step 4: Simplify right side
    39,109.93x = 1,180,894,871.00
  5. Step 5: Solve for x
    x = 1,180,894,871.00/39,109.93
  6. Step 6: Final answer
    x = 30,194.25

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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.