Home / 30,080.95-45,121.44-19,004.47

Finding the Fourth Proportional to 30,080.95, 45,121.44 and 19,004.47

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Solution

The fourth proportional to 30,080.95, 45,121.44 and 19,004.47 is: 28,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.95 : 45,121.44 = 19,004.47 : x
  2. Step 2: Convert to fraction form
    30,080.95/45,121.44 = 19,004.47/x
  3. Step 3: Cross multiply
    30,080.95x = 45,121.44 × 19,004.47
  4. Step 4: Simplify right side
    30,080.95x = 857,509,052.84
  5. Step 5: Solve for x
    x = 857,509,052.84/30,080.95
  6. Step 6: Final answer
    x = 28,506.71

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Double scale
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Similar ratio
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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.