Home / 30,133.23-45,208.31-11,157.58

Finding the Fourth Proportional to 30,133.23, 45,208.31 and 11,157.58

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Solution

The fourth proportional to 30,133.23, 45,208.31 and 11,157.58 is: 16,739.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.23 : 45,208.31 = 11,157.58 : x
  2. Step 2: Convert to fraction form
    30,133.23/45,208.31 = 11,157.58/x
  3. Step 3: Cross multiply
    30,133.23x = 45,208.31 × 11,157.58
  4. Step 4: Simplify right side
    30,133.23x = 504,415,279.70
  5. Step 5: Solve for x
    x = 504,415,279.70/30,133.23
  6. Step 6: Final answer
    x = 16,739.50

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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.