Home / 30,486.98-42,072.20-17,058.26

Finding the Fourth Proportional to 30,486.98, 42,072.20 and 17,058.26

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Solution

The fourth proportional to 30,486.98, 42,072.20 and 17,058.26 is: 23,540.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.98 : 42,072.20 = 17,058.26 : x
  2. Step 2: Convert to fraction form
    30,486.98/42,072.20 = 17,058.26/x
  3. Step 3: Cross multiply
    30,486.98x = 42,072.20 × 17,058.26
  4. Step 4: Simplify right side
    30,486.98x = 717,678,441.08
  5. Step 5: Solve for x
    x = 717,678,441.08/30,486.98
  6. Step 6: Final answer
    x = 23,540.49

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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.