Home / 30,574.45-45,757.99-18,271.09

Finding the Fourth Proportional to 30,574.45, 45,757.99 and 18,271.09

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Solution

The fourth proportional to 30,574.45, 45,757.99 and 18,271.09 is: 27,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.45 : 45,757.99 = 18,271.09 : x
  2. Step 2: Convert to fraction form
    30,574.45/45,757.99 = 18,271.09/x
  3. Step 3: Cross multiply
    30,574.45x = 45,757.99 × 18,271.09
  4. Step 4: Simplify right side
    30,574.45x = 836,048,353.51
  5. Step 5: Solve for x
    x = 836,048,353.51/30,574.45
  6. Step 6: Final answer
    x = 27,344.67

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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.