Home / 30,163.40-45,200.55-21,860.90

Finding the Fourth Proportional to 30,163.40, 45,200.55 and 21,860.90

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Solution

The fourth proportional to 30,163.40, 45,200.55 and 21,860.90 is: 32,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.40 : 45,200.55 = 21,860.90 : x
  2. Step 2: Convert to fraction form
    30,163.40/45,200.55 = 21,860.90/x
  3. Step 3: Cross multiply
    30,163.40x = 45,200.55 × 21,860.90
  4. Step 4: Simplify right side
    30,163.40x = 988,124,703.50
  5. Step 5: Solve for x
    x = 988,124,703.50/30,163.40
  6. Step 6: Final answer
    x = 32,759.06

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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.