Home / 21,206.57-29,267.37-12,132.75

Finding the Fourth Proportional to 21,206.57, 29,267.37 and 12,132.75

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Solution

The fourth proportional to 21,206.57, 29,267.37 and 12,132.75 is: 16,744.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.57 : 29,267.37 = 12,132.75 : x
  2. Step 2: Convert to fraction form
    21,206.57/29,267.37 = 12,132.75/x
  3. Step 3: Cross multiply
    21,206.57x = 29,267.37 × 12,132.75
  4. Step 4: Simplify right side
    21,206.57x = 355,093,683.37
  5. Step 5: Solve for x
    x = 355,093,683.37/21,206.57
  6. Step 6: Final answer
    x = 16,744.52

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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.