Home / 39,017.19-53,843.54-21,112.51

Finding the Fourth Proportional to 39,017.19, 53,843.54 and 21,112.51

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Solution

The fourth proportional to 39,017.19, 53,843.54 and 21,112.51 is: 29,135.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.19 : 53,843.54 = 21,112.51 : x
  2. Step 2: Convert to fraction form
    39,017.19/53,843.54 = 21,112.51/x
  3. Step 3: Cross multiply
    39,017.19x = 53,843.54 × 21,112.51
  4. Step 4: Simplify right side
    39,017.19x = 1,136,772,276.69
  5. Step 5: Solve for x
    x = 1,136,772,276.69/39,017.19
  6. Step 6: Final answer
    x = 29,135.17

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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.