Home / 19,814.82-27,339.96-13,442.28

Finding the Fourth Proportional to 19,814.82, 27,339.96 and 13,442.28

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Solution

The fourth proportional to 19,814.82, 27,339.96 and 13,442.28 is: 18,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.82 : 27,339.96 = 13,442.28 : x
  2. Step 2: Convert to fraction form
    19,814.82/27,339.96 = 13,442.28/x
  3. Step 3: Cross multiply
    19,814.82x = 27,339.96 × 13,442.28
  4. Step 4: Simplify right side
    19,814.82x = 367,511,397.51
  5. Step 5: Solve for x
    x = 367,511,397.51/19,814.82
  6. Step 6: Final answer
    x = 18,547.30

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1.5x scale

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.