Home / 30,219.31-41,700.72-16,790.32

Finding the Fourth Proportional to 30,219.31, 41,700.72 and 16,790.32

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Solution

The fourth proportional to 30,219.31, 41,700.72 and 16,790.32 is: 23,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.31 : 41,700.72 = 16,790.32 : x
  2. Step 2: Convert to fraction form
    30,219.31/41,700.72 = 16,790.32/x
  3. Step 3: Cross multiply
    30,219.31x = 41,700.72 × 16,790.32
  4. Step 4: Simplify right side
    30,219.31x = 700,168,433.03
  5. Step 5: Solve for x
    x = 700,168,433.03/30,219.31
  6. Step 6: Final answer
    x = 23,169.57

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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.