Home / 39,106.47-53,966.99-21,201.47

Finding the Fourth Proportional to 39,106.47, 53,966.99 and 21,201.47

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Solution

The fourth proportional to 39,106.47, 53,966.99 and 21,201.47 is: 29,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,106.47 : 53,966.99 = 21,201.47 : x
  2. Step 2: Convert to fraction form
    39,106.47/53,966.99 = 21,201.47/x
  3. Step 3: Cross multiply
    39,106.47x = 53,966.99 × 21,201.47
  4. Step 4: Simplify right side
    39,106.47x = 1,144,179,519.48
  5. Step 5: Solve for x
    x = 1,144,179,519.48/39,106.47
  6. Step 6: Final answer
    x = 29,258.06

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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.