Home / 21,751.98-30,022.05-14,199.54

Finding the Fourth Proportional to 21,751.98, 30,022.05 and 14,199.54

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Solution

The fourth proportional to 21,751.98, 30,022.05 and 14,199.54 is: 19,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.98 : 30,022.05 = 14,199.54 : x
  2. Step 2: Convert to fraction form
    21,751.98/30,022.05 = 14,199.54/x
  3. Step 3: Cross multiply
    21,751.98x = 30,022.05 × 14,199.54
  4. Step 4: Simplify right side
    21,751.98x = 426,299,299.86
  5. Step 5: Solve for x
    x = 426,299,299.86/21,751.98
  6. Step 6: Final answer
    x = 19,598.18

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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.