Home / 30,110.68-45,157.74-12,577.60

Finding the Fourth Proportional to 30,110.68, 45,157.74 and 12,577.60

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Solution

The fourth proportional to 30,110.68, 45,157.74 and 12,577.60 is: 18,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,110.68 : 45,157.74 = 12,577.60 : x
  2. Step 2: Convert to fraction form
    30,110.68/45,157.74 = 12,577.60/x
  3. Step 3: Cross multiply
    30,110.68x = 45,157.74 × 12,577.60
  4. Step 4: Simplify right side
    30,110.68x = 567,975,990.62
  5. Step 5: Solve for x
    x = 567,975,990.62/30,110.68
  6. Step 6: Final answer
    x = 18,862.94

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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.