Home / 30,636.12-45,942.34-11,913.63

Finding the Fourth Proportional to 30,636.12, 45,942.34 and 11,913.63

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Solution

The fourth proportional to 30,636.12, 45,942.34 and 11,913.63 is: 17,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636.12 : 45,942.34 = 11,913.63 : x
  2. Step 2: Convert to fraction form
    30,636.12/45,942.34 = 11,913.63/x
  3. Step 3: Cross multiply
    30,636.12x = 45,942.34 × 11,913.63
  4. Step 4: Simplify right side
    30,636.12x = 547,340,118.79
  5. Step 5: Solve for x
    x = 547,340,118.79/30,636.12
  6. Step 6: Final answer
    x = 17,865.84

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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.