Home / 30,155.10-41,610.60-16,722.96

Finding the Fourth Proportional to 30,155.10, 41,610.60 and 16,722.96

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Solution

The fourth proportional to 30,155.10, 41,610.60 and 16,722.96 is: 23,075.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.10 : 41,610.60 = 16,722.96 : x
  2. Step 2: Convert to fraction form
    30,155.10/41,610.60 = 16,722.96/x
  3. Step 3: Cross multiply
    30,155.10x = 41,610.60 × 16,722.96
  4. Step 4: Simplify right side
    30,155.10x = 695,852,399.38
  5. Step 5: Solve for x
    x = 695,852,399.38/30,155.10
  6. Step 6: Final answer
    x = 23,075.78

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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.