Home / 21,556.06-29,747.06-12,124.62

Finding the Fourth Proportional to 21,556.06, 29,747.06 and 12,124.62

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Solution

The fourth proportional to 21,556.06, 29,747.06 and 12,124.62 is: 16,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.06 : 29,747.06 = 12,124.62 : x
  2. Step 2: Convert to fraction form
    21,556.06/29,747.06 = 12,124.62/x
  3. Step 3: Cross multiply
    21,556.06x = 29,747.06 × 12,124.62
  4. Step 4: Simplify right side
    21,556.06x = 360,671,798.62
  5. Step 5: Solve for x
    x = 360,671,798.62/21,556.06
  6. Step 6: Final answer
    x = 16,731.81

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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.