Home / 38,862.06-53,629.47-21,867.18

Finding the Fourth Proportional to 38,862.06, 53,629.47 and 21,867.18

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Solution

The fourth proportional to 38,862.06, 53,629.47 and 21,867.18 is: 30,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,862.06 : 53,629.47 = 21,867.18 : x
  2. Step 2: Convert to fraction form
    38,862.06/53,629.47 = 21,867.18/x
  3. Step 3: Cross multiply
    38,862.06x = 53,629.47 × 21,867.18
  4. Step 4: Simplify right side
    38,862.06x = 1,172,725,273.79
  5. Step 5: Solve for x
    x = 1,172,725,273.79/38,862.06
  6. Step 6: Final answer
    x = 30,176.61

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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.