Home / 19,966.58-29,971.74-11,218.58

Finding the Fourth Proportional to 19,966.58, 29,971.74 and 11,218.58

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Solution

The fourth proportional to 19,966.58, 29,971.74 and 11,218.58 is: 16,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.58 : 29,971.74 = 11,218.58 : x
  2. Step 2: Convert to fraction form
    19,966.58/29,971.74 = 11,218.58/x
  3. Step 3: Cross multiply
    19,966.58x = 29,971.74 × 11,218.58
  4. Step 4: Simplify right side
    19,966.58x = 336,240,362.93
  5. Step 5: Solve for x
    x = 336,240,362.93/19,966.58
  6. Step 6: Final answer
    x = 16,840.16

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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.