Home / 21,899.08-30,202.50-16,235.56

Finding the Fourth Proportional to 21,899.08, 30,202.50 and 16,235.56

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Solution

The fourth proportional to 21,899.08, 30,202.50 and 16,235.56 is: 22,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.08 : 30,202.50 = 16,235.56 : x
  2. Step 2: Convert to fraction form
    21,899.08/30,202.50 = 16,235.56/x
  3. Step 3: Cross multiply
    21,899.08x = 30,202.50 × 16,235.56
  4. Step 4: Simplify right side
    21,899.08x = 490,354,500.90
  5. Step 5: Solve for x
    x = 490,354,500.90/21,899.08
  6. Step 6: Final answer
    x = 22,391.56

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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.