Home / 30,076.36-45,120.77-9,015.55

Finding the Fourth Proportional to 30,076.36, 45,120.77 and 9,015.55

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Solution

The fourth proportional to 30,076.36, 45,120.77 and 9,015.55 is: 13,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.36 : 45,120.77 = 9,015.55 : x
  2. Step 2: Convert to fraction form
    30,076.36/45,120.77 = 9,015.55/x
  3. Step 3: Cross multiply
    30,076.36x = 45,120.77 × 9,015.55
  4. Step 4: Simplify right side
    30,076.36x = 406,788,557.97
  5. Step 5: Solve for x
    x = 406,788,557.97/30,076.36
  6. Step 6: Final answer
    x = 13,525.19

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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.