Home / 38,874.75-53,651.88-21,885.36

Finding the Fourth Proportional to 38,874.75, 53,651.88 and 21,885.36

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Solution

The fourth proportional to 38,874.75, 53,651.88 and 21,885.36 is: 30,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,874.75 : 53,651.88 = 21,885.36 : x
  2. Step 2: Convert to fraction form
    38,874.75/53,651.88 = 21,885.36/x
  3. Step 3: Cross multiply
    38,874.75x = 53,651.88 × 21,885.36
  4. Step 4: Simplify right side
    38,874.75x = 1,174,190,708.48
  5. Step 5: Solve for x
    x = 1,174,190,708.48/38,874.75
  6. Step 6: Final answer
    x = 30,204.46

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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.