Home / 39,106.93-53,967.45-21,201.97

Finding the Fourth Proportional to 39,106.93, 53,967.45 and 21,201.97

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Solution

The fourth proportional to 39,106.93, 53,967.45 and 21,201.97 is: 29,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,106.93 : 53,967.45 = 21,201.97 : x
  2. Step 2: Convert to fraction form
    39,106.93/53,967.45 = 21,201.97/x
  3. Step 3: Cross multiply
    39,106.93x = 53,967.45 × 21,201.97
  4. Step 4: Simplify right side
    39,106.93x = 1,144,216,255.88
  5. Step 5: Solve for x
    x = 1,144,216,255.88/39,106.93
  6. Step 6: Final answer
    x = 29,258.66

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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.