Home / 21,559.26-29,751.78-12,127.83

Finding the Fourth Proportional to 21,559.26, 29,751.78 and 12,127.83

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Solution

The fourth proportional to 21,559.26, 29,751.78 and 12,127.83 is: 16,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,559.26 : 29,751.78 = 12,127.83 : x
  2. Step 2: Convert to fraction form
    21,559.26/29,751.78 = 12,127.83/x
  3. Step 3: Cross multiply
    21,559.26x = 29,751.78 × 12,127.83
  4. Step 4: Simplify right side
    21,559.26x = 360,824,381.28
  5. Step 5: Solve for x
    x = 360,824,381.28/21,559.26
  6. Step 6: Final answer
    x = 16,736.40

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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.