Home / 21,805.15-30,100.23-14,741.14

Finding the Fourth Proportional to 21,805.15, 30,100.23 and 14,741.14

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Solution

The fourth proportional to 21,805.15, 30,100.23 and 14,741.14 is: 20,348.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.15 : 30,100.23 = 14,741.14 : x
  2. Step 2: Convert to fraction form
    21,805.15/30,100.23 = 14,741.14/x
  3. Step 3: Cross multiply
    21,805.15x = 30,100.23 × 14,741.14
  4. Step 4: Simplify right side
    21,805.15x = 443,711,704.46
  5. Step 5: Solve for x
    x = 443,711,704.46/21,805.15
  6. Step 6: Final answer
    x = 20,348.94

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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.