Home / 30,788.36-42,459.54-22,850.36

Finding the Fourth Proportional to 30,788.36, 42,459.54 and 22,850.36

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Solution

The fourth proportional to 30,788.36, 42,459.54 and 22,850.36 is: 31,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,788.36 : 42,459.54 = 22,850.36 : x
  2. Step 2: Convert to fraction form
    30,788.36/42,459.54 = 22,850.36/x
  3. Step 3: Cross multiply
    30,788.36x = 42,459.54 × 22,850.36
  4. Step 4: Simplify right side
    30,788.36x = 970,215,774.43
  5. Step 5: Solve for x
    x = 970,215,774.43/30,788.36
  6. Step 6: Final answer
    x = 31,512.42

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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.