Home / 19,320-26,661.60-10,936.50

Finding the Fourth Proportional to 19,320, 26,661.60 and 10,936.50

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Solution

The fourth proportional to 19,320, 26,661.60 and 10,936.50 is: 15,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320 : 26,661.60 = 10,936.50 : x
  2. Step 2: Convert to fraction form
    19,320/26,661.60 = 10,936.50/x
  3. Step 3: Cross multiply
    19,320x = 26,661.60 × 10,936.50
  4. Step 4: Simplify right side
    19,320x = 291,584,588.40
  5. Step 5: Solve for x
    x = 291,584,588.40/19,320
  6. Step 6: Final answer
    x = 15,092.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.