Home / 30,525.36-45,817.20-18,861.36

Finding the Fourth Proportional to 30,525.36, 45,817.20 and 18,861.36

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Solution

The fourth proportional to 30,525.36, 45,817.20 and 18,861.36 is: 28,310.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.36 : 45,817.20 = 18,861.36 : x
  2. Step 2: Convert to fraction form
    30,525.36/45,817.20 = 18,861.36/x
  3. Step 3: Cross multiply
    30,525.36x = 45,817.20 × 18,861.36
  4. Step 4: Simplify right side
    30,525.36x = 864,174,703.39
  5. Step 5: Solve for x
    x = 864,174,703.39/30,525.36
  6. Step 6: Final answer
    x = 28,310.06

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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.