Home / 21,020.58-29,008.59-13,063.14

Finding the Fourth Proportional to 21,020.58, 29,008.59 and 13,063.14

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Solution

The fourth proportional to 21,020.58, 29,008.59 and 13,063.14 is: 18,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.58 : 29,008.59 = 13,063.14 : x
  2. Step 2: Convert to fraction form
    21,020.58/29,008.59 = 13,063.14/x
  3. Step 3: Cross multiply
    21,020.58x = 29,008.59 × 13,063.14
  4. Step 4: Simplify right side
    21,020.58x = 378,943,272.37
  5. Step 5: Solve for x
    x = 378,943,272.37/21,020.58
  6. Step 6: Final answer
    x = 18,027.25

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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.