Home / 19,008.36-28,485-13,079.16

Finding the Fourth Proportional to 19,008.36, 28,485 and 13,079.16

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Solution

The fourth proportional to 19,008.36, 28,485 and 13,079.16 is: 19,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.36 : 28,485 = 13,079.16 : x
  2. Step 2: Convert to fraction form
    19,008.36/28,485 = 13,079.16/x
  3. Step 3: Cross multiply
    19,008.36x = 28,485 × 13,079.16
  4. Step 4: Simplify right side
    19,008.36x = 372,559,872.60
  5. Step 5: Solve for x
    x = 372,559,872.60/19,008.36
  6. Step 6: Final answer
    x = 19,599.79

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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.