Home / 30,958.23-42,722.54-16,811.19

Finding the Fourth Proportional to 30,958.23, 42,722.54 and 16,811.19

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Solution

The fourth proportional to 30,958.23, 42,722.54 and 16,811.19 is: 23,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,958.23 : 42,722.54 = 16,811.19 : x
  2. Step 2: Convert to fraction form
    30,958.23/42,722.54 = 16,811.19/x
  3. Step 3: Cross multiply
    30,958.23x = 42,722.54 × 16,811.19
  4. Step 4: Simplify right side
    30,958.23x = 718,216,653.17
  5. Step 5: Solve for x
    x = 718,216,653.17/30,958.23
  6. Step 6: Final answer
    x = 23,199.54

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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.