Home / 21,819.84-32,679.94-13,036.74

Finding the Fourth Proportional to 21,819.84, 32,679.94 and 13,036.74

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Solution

The fourth proportional to 21,819.84, 32,679.94 and 13,036.74 is: 19,525.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.84 : 32,679.94 = 13,036.74 : x
  2. Step 2: Convert to fraction form
    21,819.84/32,679.94 = 13,036.74/x
  3. Step 3: Cross multiply
    21,819.84x = 32,679.94 × 13,036.74
  4. Step 4: Simplify right side
    21,819.84x = 426,039,881.00
  5. Step 5: Solve for x
    x = 426,039,881.00/21,819.84
  6. Step 6: Final answer
    x = 19,525.34

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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.