Home / 19,217.40-28,821.30-7,368.60

Finding the Fourth Proportional to 19,217.40, 28,821.30 and 7,368.60

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Solution

The fourth proportional to 19,217.40, 28,821.30 and 7,368.60 is: 11,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.40 : 28,821.30 = 7,368.60 : x
  2. Step 2: Convert to fraction form
    19,217.40/28,821.30 = 7,368.60/x
  3. Step 3: Cross multiply
    19,217.40x = 28,821.30 × 7,368.60
  4. Step 4: Simplify right side
    19,217.40x = 212,372,631.18
  5. Step 5: Solve for x
    x = 212,372,631.18/19,217.40
  6. Step 6: Final answer
    x = 11,051.06

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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.