Home / 30,912.66-42,678.61-23,728.83

Finding the Fourth Proportional to 30,912.66, 42,678.61 and 23,728.83

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Solution

The fourth proportional to 30,912.66, 42,678.61 and 23,728.83 is: 32,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.66 : 42,678.61 = 23,728.83 : x
  2. Step 2: Convert to fraction form
    30,912.66/42,678.61 = 23,728.83/x
  3. Step 3: Cross multiply
    30,912.66x = 42,678.61 × 23,728.83
  4. Step 4: Simplify right side
    30,912.66x = 1,012,713,261.96
  5. Step 5: Solve for x
    x = 1,012,713,261.96/30,912.66
  6. Step 6: Final answer
    x = 32,760.47

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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.