Home / 19,368.84-28,979.94-11,475.60

Finding the Fourth Proportional to 19,368.84, 28,979.94 and 11,475.60

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Solution

The fourth proportional to 19,368.84, 28,979.94 and 11,475.60 is: 17,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368.84 : 28,979.94 = 11,475.60 : x
  2. Step 2: Convert to fraction form
    19,368.84/28,979.94 = 11,475.60/x
  3. Step 3: Cross multiply
    19,368.84x = 28,979.94 × 11,475.60
  4. Step 4: Simplify right side
    19,368.84x = 332,562,199.46
  5. Step 5: Solve for x
    x = 332,562,199.46/19,368.84
  6. Step 6: Final answer
    x = 17,169.96

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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.