Home / 19,415.16-29,131.38-10,179

Finding the Fourth Proportional to 19,415.16, 29,131.38 and 10,179

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Solution

The fourth proportional to 19,415.16, 29,131.38 and 10,179 is: 15,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.16 : 29,131.38 = 10,179 : x
  2. Step 2: Convert to fraction form
    19,415.16/29,131.38 = 10,179/x
  3. Step 3: Cross multiply
    19,415.16x = 29,131.38 × 10,179
  4. Step 4: Simplify right side
    19,415.16x = 296,528,317.02
  5. Step 5: Solve for x
    x = 296,528,317.02/19,415.16
  6. Step 6: Final answer
    x = 15,273.03

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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.