Home / 38,918.57-53,703.74-21,922.34

Finding the Fourth Proportional to 38,918.57, 53,703.74 and 21,922.34

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Solution

The fourth proportional to 38,918.57, 53,703.74 and 21,922.34 is: 30,250.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.57 : 53,703.74 = 21,922.34 : x
  2. Step 2: Convert to fraction form
    38,918.57/53,703.74 = 21,922.34/x
  3. Step 3: Cross multiply
    38,918.57x = 53,703.74 × 21,922.34
  4. Step 4: Simplify right side
    38,918.57x = 1,177,311,433.84
  5. Step 5: Solve for x
    x = 1,177,311,433.84/38,918.57
  6. Step 6: Final answer
    x = 30,250.64

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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.