Home / 30,508.40-45,764.68-9,450.30

Finding the Fourth Proportional to 30,508.40, 45,764.68 and 9,450.30

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Solution

The fourth proportional to 30,508.40, 45,764.68 and 9,450.30 is: 14,176.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.40 : 45,764.68 = 9,450.30 : x
  2. Step 2: Convert to fraction form
    30,508.40/45,764.68 = 9,450.30/x
  3. Step 3: Cross multiply
    30,508.40x = 45,764.68 × 9,450.30
  4. Step 4: Simplify right side
    30,508.40x = 432,489,955.40
  5. Step 5: Solve for x
    x = 432,489,955.40/30,508.40
  6. Step 6: Final answer
    x = 14,176.09

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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.