Home / 30,486.16-42,072.53-17,056.61

Finding the Fourth Proportional to 30,486.16, 42,072.53 and 17,056.61

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Solution

The fourth proportional to 30,486.16, 42,072.53 and 17,056.61 is: 23,539.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.16 : 42,072.53 = 17,056.61 : x
  2. Step 2: Convert to fraction form
    30,486.16/42,072.53 = 17,056.61/x
  3. Step 3: Cross multiply
    30,486.16x = 42,072.53 × 17,056.61
  4. Step 4: Simplify right side
    30,486.16x = 717,614,735.92
  5. Step 5: Solve for x
    x = 717,614,735.92/30,486.16
  6. Step 6: Final answer
    x = 23,539.03

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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.