Home / 21,173.50-29,219.60-11,742.07

Finding the Fourth Proportional to 21,173.50, 29,219.60 and 11,742.07

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Solution

The fourth proportional to 21,173.50, 29,219.60 and 11,742.07 is: 16,204.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.50 : 29,219.60 = 11,742.07 : x
  2. Step 2: Convert to fraction form
    21,173.50/29,219.60 = 11,742.07/x
  3. Step 3: Cross multiply
    21,173.50x = 29,219.60 × 11,742.07
  4. Step 4: Simplify right side
    21,173.50x = 343,098,588.57
  5. Step 5: Solve for x
    x = 343,098,588.57/21,173.50
  6. Step 6: Final answer
    x = 16,204.15

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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.