Home / 30,180.20-45,252.30-18,501.80

Finding the Fourth Proportional to 30,180.20, 45,252.30 and 18,501.80

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Solution

The fourth proportional to 30,180.20, 45,252.30 and 18,501.80 is: 27,741.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180.20 : 45,252.30 = 18,501.80 : x
  2. Step 2: Convert to fraction form
    30,180.20/45,252.30 = 18,501.80/x
  3. Step 3: Cross multiply
    30,180.20x = 45,252.30 × 18,501.80
  4. Step 4: Simplify right side
    30,180.20x = 837,249,004.14
  5. Step 5: Solve for x
    x = 837,249,004.14/30,180.20
  6. Step 6: Final answer
    x = 27,741.67

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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.