Home / 30,810.06-42,517.87-16,662.90

Finding the Fourth Proportional to 30,810.06, 42,517.87 and 16,662.90

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Solution

The fourth proportional to 30,810.06, 42,517.87 and 16,662.90 is: 22,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.06 : 42,517.87 = 16,662.90 : x
  2. Step 2: Convert to fraction form
    30,810.06/42,517.87 = 16,662.90/x
  3. Step 3: Cross multiply
    30,810.06x = 42,517.87 × 16,662.90
  4. Step 4: Simplify right side
    30,810.06x = 708,471,016.02
  5. Step 5: Solve for x
    x = 708,471,016.02/30,810.06
  6. Step 6: Final answer
    x = 22,994.80

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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.