Home / 39,081.51-53,932.62-21,176.46

Finding the Fourth Proportional to 39,081.51, 53,932.62 and 21,176.46

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Solution

The fourth proportional to 39,081.51, 53,932.62 and 21,176.46 is: 29,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.51 : 53,932.62 = 21,176.46 : x
  2. Step 2: Convert to fraction form
    39,081.51/53,932.62 = 21,176.46/x
  3. Step 3: Cross multiply
    39,081.51x = 53,932.62 × 21,176.46
  4. Step 4: Simplify right side
    39,081.51x = 1,142,101,970.13
  5. Step 5: Solve for x
    x = 1,142,101,970.13/39,081.51
  6. Step 6: Final answer
    x = 29,223.59

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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.