Home / 39,106.67-53,967.16-21,201.51

Finding the Fourth Proportional to 39,106.67, 53,967.16 and 21,201.51

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Solution

The fourth proportional to 39,106.67, 53,967.16 and 21,201.51 is: 29,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,106.67 : 53,967.16 = 21,201.51 : x
  2. Step 2: Convert to fraction form
    39,106.67/53,967.16 = 21,201.51/x
  3. Step 3: Cross multiply
    39,106.67x = 53,967.16 × 21,201.51
  4. Step 4: Simplify right side
    39,106.67x = 1,144,185,511.29
  5. Step 5: Solve for x
    x = 1,144,185,511.29/39,106.67
  6. Step 6: Final answer
    x = 29,258.07

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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.