Home / 19,021.74-28,520.46-9,141.36

Finding the Fourth Proportional to 19,021.74, 28,520.46 and 9,141.36

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Solution

The fourth proportional to 19,021.74, 28,520.46 and 9,141.36 is: 13,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.74 : 28,520.46 = 9,141.36 : x
  2. Step 2: Convert to fraction form
    19,021.74/28,520.46 = 9,141.36/x
  3. Step 3: Cross multiply
    19,021.74x = 28,520.46 × 9,141.36
  4. Step 4: Simplify right side
    19,021.74x = 260,715,792.23
  5. Step 5: Solve for x
    x = 260,715,792.23/19,021.74
  6. Step 6: Final answer
    x = 13,706.20

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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.