Home / 19,671.36-29,519.30-7,984.58

Finding the Fourth Proportional to 19,671.36, 29,519.30 and 7,984.58

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Solution

The fourth proportional to 19,671.36, 29,519.30 and 7,984.58 is: 11,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.36 : 29,519.30 = 7,984.58 : x
  2. Step 2: Convert to fraction form
    19,671.36/29,519.30 = 7,984.58/x
  3. Step 3: Cross multiply
    19,671.36x = 29,519.30 × 7,984.58
  4. Step 4: Simplify right side
    19,671.36x = 235,699,084.76
  5. Step 5: Solve for x
    x = 235,699,084.76/19,671.36
  6. Step 6: Final answer
    x = 11,981.84

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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.