Home / 30,675.44-45,991.61-11,939.67

Finding the Fourth Proportional to 30,675.44, 45,991.61 and 11,939.67

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Solution

The fourth proportional to 30,675.44, 45,991.61 and 11,939.67 is: 17,901.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.44 : 45,991.61 = 11,939.67 : x
  2. Step 2: Convert to fraction form
    30,675.44/45,991.61 = 11,939.67/x
  3. Step 3: Cross multiply
    30,675.44x = 45,991.61 × 11,939.67
  4. Step 4: Simplify right side
    30,675.44x = 549,124,586.47
  5. Step 5: Solve for x
    x = 549,124,586.47/30,675.44
  6. Step 6: Final answer
    x = 17,901.12

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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.