Home / 31,129.13-42,958.32-16,982.27

Finding the Fourth Proportional to 31,129.13, 42,958.32 and 16,982.27

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Solution

The fourth proportional to 31,129.13, 42,958.32 and 16,982.27 is: 23,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129.13 : 42,958.32 = 16,982.27 : x
  2. Step 2: Convert to fraction form
    31,129.13/42,958.32 = 16,982.27/x
  3. Step 3: Cross multiply
    31,129.13x = 42,958.32 × 16,982.27
  4. Step 4: Simplify right side
    31,129.13x = 729,529,574.19
  5. Step 5: Solve for x
    x = 729,529,574.19/31,129.13
  6. Step 6: Final answer
    x = 23,435.60

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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.