Home / 30,636.32-45,958.88-10,909.12

Finding the Fourth Proportional to 30,636.32, 45,958.88 and 10,909.12

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Solution

The fourth proportional to 30,636.32, 45,958.88 and 10,909.12 is: 16,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,636.32 : 45,958.88 = 10,909.12 : x
  2. Step 2: Convert to fraction form
    30,636.32/45,958.88 = 10,909.12/x
  3. Step 3: Cross multiply
    30,636.32x = 45,958.88 × 10,909.12
  4. Step 4: Simplify right side
    30,636.32x = 501,370,936.99
  5. Step 5: Solve for x
    x = 501,370,936.99/30,636.32
  6. Step 6: Final answer
    x = 16,365.25

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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.