Home / 30,842.06-42,562.85-18,738.42

Finding the Fourth Proportional to 30,842.06, 42,562.85 and 18,738.42

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Solution

The fourth proportional to 30,842.06, 42,562.85 and 18,738.42 is: 25,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,842.06 : 42,562.85 = 18,738.42 : x
  2. Step 2: Convert to fraction form
    30,842.06/42,562.85 = 18,738.42/x
  3. Step 3: Cross multiply
    30,842.06x = 42,562.85 × 18,738.42
  4. Step 4: Simplify right side
    30,842.06x = 797,560,466.00
  5. Step 5: Solve for x
    x = 797,560,466.00/30,842.06
  6. Step 6: Final answer
    x = 25,859.51

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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.