Home / 39,908.61-55,078.86-22,918.16

Finding the Fourth Proportional to 39,908.61, 55,078.86 and 22,918.16

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Solution

The fourth proportional to 39,908.61, 55,078.86 and 22,918.16 is: 31,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,908.61 : 55,078.86 = 22,918.16 : x
  2. Step 2: Convert to fraction form
    39,908.61/55,078.86 = 22,918.16/x
  3. Step 3: Cross multiply
    39,908.61x = 55,078.86 × 22,918.16
  4. Step 4: Simplify right side
    39,908.61x = 1,262,306,349.74
  5. Step 5: Solve for x
    x = 1,262,306,349.74/39,908.61
  6. Step 6: Final answer
    x = 31,629.93

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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.