Home / 30,200.55-45,246.15-18,500.10

Finding the Fourth Proportional to 30,200.55, 45,246.15 and 18,500.10

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Solution

The fourth proportional to 30,200.55, 45,246.15 and 18,500.10 is: 27,716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,200.55 : 45,246.15 = 18,500.10 : x
  2. Step 2: Convert to fraction form
    30,200.55/45,246.15 = 18,500.10/x
  3. Step 3: Cross multiply
    30,200.55x = 45,246.15 × 18,500.10
  4. Step 4: Simplify right side
    30,200.55x = 837,058,299.62
  5. Step 5: Solve for x
    x = 837,058,299.62/30,200.55
  6. Step 6: Final answer
    x = 27,716.66

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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.