Home / 20,585.26-28,409.06-12,522.07

Finding the Fourth Proportional to 20,585.26, 28,409.06 and 12,522.07

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Solution

The fourth proportional to 20,585.26, 28,409.06 and 12,522.07 is: 17,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.26 : 28,409.06 = 12,522.07 : x
  2. Step 2: Convert to fraction form
    20,585.26/28,409.06 = 12,522.07/x
  3. Step 3: Cross multiply
    20,585.26x = 28,409.06 × 12,522.07
  4. Step 4: Simplify right side
    20,585.26x = 355,740,033.30
  5. Step 5: Solve for x
    x = 355,740,033.30/20,585.26
  6. Step 6: Final answer
    x = 17,281.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.