Home / 19,918-27,488.67-10,967.32

Finding the Fourth Proportional to 19,918, 27,488.67 and 10,967.32

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Solution

The fourth proportional to 19,918, 27,488.67 and 10,967.32 is: 15,135.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918 : 27,488.67 = 10,967.32 : x
  2. Step 2: Convert to fraction form
    19,918/27,488.67 = 10,967.32/x
  3. Step 3: Cross multiply
    19,918x = 27,488.67 × 10,967.32
  4. Step 4: Simplify right side
    19,918x = 301,477,040.26
  5. Step 5: Solve for x
    x = 301,477,040.26/19,918
  6. Step 6: Final answer
    x = 15,135.91

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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.