Home / 38,904.43-53,687.40-21,908.60

Finding the Fourth Proportional to 38,904.43, 53,687.40 and 21,908.60

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Solution

The fourth proportional to 38,904.43, 53,687.40 and 21,908.60 is: 30,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,904.43 : 53,687.40 = 21,908.60 : x
  2. Step 2: Convert to fraction form
    38,904.43/53,687.40 = 21,908.60/x
  3. Step 3: Cross multiply
    38,904.43x = 53,687.40 × 21,908.60
  4. Step 4: Simplify right side
    38,904.43x = 1,176,215,771.64
  5. Step 5: Solve for x
    x = 1,176,215,771.64/38,904.43
  6. Step 6: Final answer
    x = 30,233.47

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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.