Home / 30,109.69-45,162.83-9,049.31

Finding the Fourth Proportional to 30,109.69, 45,162.83 and 9,049.31

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Solution

The fourth proportional to 30,109.69, 45,162.83 and 9,049.31 is: 13,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.69 : 45,162.83 = 9,049.31 : x
  2. Step 2: Convert to fraction form
    30,109.69/45,162.83 = 9,049.31/x
  3. Step 3: Cross multiply
    30,109.69x = 45,162.83 × 9,049.31
  4. Step 4: Simplify right side
    30,109.69x = 408,692,485.16
  5. Step 5: Solve for x
    x = 408,692,485.16/30,109.69
  6. Step 6: Final answer
    x = 13,573.45

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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.