Home / 30,369.12-45,495.12-17,181.12

Finding the Fourth Proportional to 30,369.12, 45,495.12 and 17,181.12

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Solution

The fourth proportional to 30,369.12, 45,495.12 and 17,181.12 is: 25,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.12 : 45,495.12 = 17,181.12 : x
  2. Step 2: Convert to fraction form
    30,369.12/45,495.12 = 17,181.12/x
  3. Step 3: Cross multiply
    30,369.12x = 45,495.12 × 17,181.12
  4. Step 4: Simplify right side
    30,369.12x = 781,657,116.13
  5. Step 5: Solve for x
    x = 781,657,116.13/30,369.12
  6. Step 6: Final answer
    x = 25,738.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.