Home / 21,805.08-30,100.05-14,741.07

Finding the Fourth Proportional to 21,805.08, 30,100.05 and 14,741.07

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Solution

The fourth proportional to 21,805.08, 30,100.05 and 14,741.07 is: 20,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.08 : 30,100.05 = 14,741.07 : x
  2. Step 2: Convert to fraction form
    21,805.08/30,100.05 = 14,741.07/x
  3. Step 3: Cross multiply
    21,805.08x = 30,100.05 × 14,741.07
  4. Step 4: Simplify right side
    21,805.08x = 443,706,944.05
  5. Step 5: Solve for x
    x = 443,706,944.05/21,805.08
  6. Step 6: Final answer
    x = 20,348.79

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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.