Home / 21,093.56-29,110.36-12,140.84

Finding the Fourth Proportional to 21,093.56, 29,110.36 and 12,140.84

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Solution

The fourth proportional to 21,093.56, 29,110.36 and 12,140.84 is: 16,755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.56 : 29,110.36 = 12,140.84 : x
  2. Step 2: Convert to fraction form
    21,093.56/29,110.36 = 12,140.84/x
  3. Step 3: Cross multiply
    21,093.56x = 29,110.36 × 12,140.84
  4. Step 4: Simplify right side
    21,093.56x = 353,424,223.10
  5. Step 5: Solve for x
    x = 353,424,223.10/21,093.56
  6. Step 6: Final answer
    x = 16,755.08

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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.