Home / 30,670.44-42,323.11-17,243.78

Finding the Fourth Proportional to 30,670.44, 42,323.11 and 17,243.78

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Solution

The fourth proportional to 30,670.44, 42,323.11 and 17,243.78 is: 23,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.44 : 42,323.11 = 17,243.78 : x
  2. Step 2: Convert to fraction form
    30,670.44/42,323.11 = 17,243.78/x
  3. Step 3: Cross multiply
    30,670.44x = 42,323.11 × 17,243.78
  4. Step 4: Simplify right side
    30,670.44x = 729,810,397.76
  5. Step 5: Solve for x
    x = 729,810,397.76/30,670.44
  6. Step 6: Final answer
    x = 23,795.24

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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.