Home / 48,019.80-72,002.70-18,438.60

Finding the Fourth Proportional to 48,019.80, 72,002.70 and 18,438.60

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Solution

The fourth proportional to 48,019.80, 72,002.70 and 18,438.60 is: 27,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,019.80 : 72,002.70 = 18,438.60 : x
  2. Step 2: Convert to fraction form
    48,019.80/72,002.70 = 18,438.60/x
  3. Step 3: Cross multiply
    48,019.80x = 72,002.70 × 18,438.60
  4. Step 4: Simplify right side
    48,019.80x = 1,327,628,984.22
  5. Step 5: Solve for x
    x = 1,327,628,984.22/48,019.80
  6. Step 6: Final answer
    x = 27,647.53

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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.