Home / 20,626.63-28,463.50-12,130.26

Finding the Fourth Proportional to 20,626.63, 28,463.50 and 12,130.26

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Solution

The fourth proportional to 20,626.63, 28,463.50 and 12,130.26 is: 16,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.63 : 28,463.50 = 12,130.26 : x
  2. Step 2: Convert to fraction form
    20,626.63/28,463.50 = 12,130.26/x
  3. Step 3: Cross multiply
    20,626.63x = 28,463.50 × 12,130.26
  4. Step 4: Simplify right side
    20,626.63x = 345,269,563.93
  5. Step 5: Solve for x
    x = 345,269,563.93/20,626.63
  6. Step 6: Final answer
    x = 16,739.02

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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.