Home / 19,721.76-29,583.60-8,036.64

Finding the Fourth Proportional to 19,721.76, 29,583.60 and 8,036.64

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Solution

The fourth proportional to 19,721.76, 29,583.60 and 8,036.64 is: 12,055.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.76 : 29,583.60 = 8,036.64 : x
  2. Step 2: Convert to fraction form
    19,721.76/29,583.60 = 8,036.64/x
  3. Step 3: Cross multiply
    19,721.76x = 29,583.60 × 8,036.64
  4. Step 4: Simplify right side
    19,721.76x = 237,752,743.10
  5. Step 5: Solve for x
    x = 237,752,743.10/19,721.76
  6. Step 6: Final answer
    x = 12,055.35

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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.