Home / 30,434.20-45,647.70-8,246.20

Finding the Fourth Proportional to 30,434.20, 45,647.70 and 8,246.20

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Solution

The fourth proportional to 30,434.20, 45,647.70 and 8,246.20 is: 12,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,434.20 : 45,647.70 = 8,246.20 : x
  2. Step 2: Convert to fraction form
    30,434.20/45,647.70 = 8,246.20/x
  3. Step 3: Cross multiply
    30,434.20x = 45,647.70 × 8,246.20
  4. Step 4: Simplify right side
    30,434.20x = 376,420,063.74
  5. Step 5: Solve for x
    x = 376,420,063.74/30,434.20
  6. Step 6: Final answer
    x = 12,368.32

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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.