Home / 30,512.50-42,108.03-17,086.59

Finding the Fourth Proportional to 30,512.50, 42,108.03 and 17,086.59

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Solution

The fourth proportional to 30,512.50, 42,108.03 and 17,086.59 is: 23,579.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,512.50 : 42,108.03 = 17,086.59 : x
  2. Step 2: Convert to fraction form
    30,512.50/42,108.03 = 17,086.59/x
  3. Step 3: Cross multiply
    30,512.50x = 42,108.03 × 17,086.59
  4. Step 4: Simplify right side
    30,512.50x = 719,482,644.32
  5. Step 5: Solve for x
    x = 719,482,644.32/30,512.50
  6. Step 6: Final answer
    x = 23,579.93

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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.