Home / 30,521.75-42,116.46-17,777.73

Finding the Fourth Proportional to 30,521.75, 42,116.46 and 17,777.73

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Solution

The fourth proportional to 30,521.75, 42,116.46 and 17,777.73 is: 24,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.75 : 42,116.46 = 17,777.73 : x
  2. Step 2: Convert to fraction form
    30,521.75/42,116.46 = 17,777.73/x
  3. Step 3: Cross multiply
    30,521.75x = 42,116.46 × 17,777.73
  4. Step 4: Simplify right side
    30,521.75x = 748,735,054.44
  5. Step 5: Solve for x
    x = 748,735,054.44/30,521.75
  6. Step 6: Final answer
    x = 24,531.20

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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.