Home / 30,041.06-45,072.30-13,399.60

Finding the Fourth Proportional to 30,041.06, 45,072.30 and 13,399.60

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Solution

The fourth proportional to 30,041.06, 45,072.30 and 13,399.60 is: 20,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.06 : 45,072.30 = 13,399.60 : x
  2. Step 2: Convert to fraction form
    30,041.06/45,072.30 = 13,399.60/x
  3. Step 3: Cross multiply
    30,041.06x = 45,072.30 × 13,399.60
  4. Step 4: Simplify right side
    30,041.06x = 603,950,791.08
  5. Step 5: Solve for x
    x = 603,950,791.08/30,041.06
  6. Step 6: Final answer
    x = 20,104.18

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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.