Home / 30,842.12-42,562.62-18,104.48

Finding the Fourth Proportional to 30,842.12, 42,562.62 and 18,104.48

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Solution

The fourth proportional to 30,842.12, 42,562.62 and 18,104.48 is: 24,984.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,842.12 : 42,562.62 = 18,104.48 : x
  2. Step 2: Convert to fraction form
    30,842.12/42,562.62 = 18,104.48/x
  3. Step 3: Cross multiply
    30,842.12x = 42,562.62 × 18,104.48
  4. Step 4: Simplify right side
    30,842.12x = 770,574,102.54
  5. Step 5: Solve for x
    x = 770,574,102.54/30,842.12
  6. Step 6: Final answer
    x = 24,984.47

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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.