Home / 30,827.28-42,539.28-17,399.86

Finding the Fourth Proportional to 30,827.28, 42,539.28 and 17,399.86

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Solution

The fourth proportional to 30,827.28, 42,539.28 and 17,399.86 is: 24,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.28 : 42,539.28 = 17,399.86 : x
  2. Step 2: Convert to fraction form
    30,827.28/42,539.28 = 17,399.86/x
  3. Step 3: Cross multiply
    30,827.28x = 42,539.28 × 17,399.86
  4. Step 4: Simplify right side
    30,827.28x = 740,177,584.19
  5. Step 5: Solve for x
    x = 740,177,584.19/30,827.28
  6. Step 6: Final answer
    x = 24,010.47

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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.