Home / 19,287.48-28,929.04-13,087.32

Finding the Fourth Proportional to 19,287.48, 28,929.04 and 13,087.32

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Solution

The fourth proportional to 19,287.48, 28,929.04 and 13,087.32 is: 19,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.48 : 28,929.04 = 13,087.32 : x
  2. Step 2: Convert to fraction form
    19,287.48/28,929.04 = 13,087.32/x
  3. Step 3: Cross multiply
    19,287.48x = 28,929.04 × 13,087.32
  4. Step 4: Simplify right side
    19,287.48x = 378,603,603.77
  5. Step 5: Solve for x
    x = 378,603,603.77/19,287.48
  6. Step 6: Final answer
    x = 19,629.50

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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.