Home / 19,292.80-28,936.32-5,440

Finding the Fourth Proportional to 19,292.80, 28,936.32 and 5,440

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Solution

The fourth proportional to 19,292.80, 28,936.32 and 5,440 is: 8,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.80 : 28,936.32 = 5,440 : x
  2. Step 2: Convert to fraction form
    19,292.80/28,936.32 = 5,440/x
  3. Step 3: Cross multiply
    19,292.80x = 28,936.32 × 5,440
  4. Step 4: Simplify right side
    19,292.80x = 157,413,580.80
  5. Step 5: Solve for x
    x = 157,413,580.80/19,292.80
  6. Step 6: Final answer
    x = 8,159.19

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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.