Home / 21,741.86-30,006.93-12,182.39

Finding the Fourth Proportional to 21,741.86, 30,006.93 and 12,182.39

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Solution

The fourth proportional to 21,741.86, 30,006.93 and 12,182.39 is: 16,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.86 : 30,006.93 = 12,182.39 : x
  2. Step 2: Convert to fraction form
    21,741.86/30,006.93 = 12,182.39/x
  3. Step 3: Cross multiply
    21,741.86x = 30,006.93 × 12,182.39
  4. Step 4: Simplify right side
    21,741.86x = 365,556,169.65
  5. Step 5: Solve for x
    x = 365,556,169.65/21,741.86
  6. Step 6: Final answer
    x = 16,813.48

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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.