Home / 19,329.60-28,998.40-11,013.60

Finding the Fourth Proportional to 19,329.60, 28,998.40 and 11,013.60

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Solution

The fourth proportional to 19,329.60, 28,998.40 and 11,013.60 is: 16,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.60 : 28,998.40 = 11,013.60 : x
  2. Step 2: Convert to fraction form
    19,329.60/28,998.40 = 11,013.60/x
  3. Step 3: Cross multiply
    19,329.60x = 28,998.40 × 11,013.60
  4. Step 4: Simplify right side
    19,329.60x = 319,376,778.24
  5. Step 5: Solve for x
    x = 319,376,778.24/19,329.60
  6. Step 6: Final answer
    x = 16,522.68

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1.5x scale

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.