Home / 21,081.98-29,094.26-12,130.85

Finding the Fourth Proportional to 21,081.98, 29,094.26 and 12,130.85

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Solution

The fourth proportional to 21,081.98, 29,094.26 and 12,130.85 is: 16,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.98 : 29,094.26 = 12,130.85 : x
  2. Step 2: Convert to fraction form
    21,081.98/29,094.26 = 12,130.85/x
  3. Step 3: Cross multiply
    21,081.98x = 29,094.26 × 12,130.85
  4. Step 4: Simplify right side
    21,081.98x = 352,938,103.92
  5. Step 5: Solve for x
    x = 352,938,103.92/21,081.98
  6. Step 6: Final answer
    x = 16,741.22

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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.