Home / 30,469.67-42,047.38-16,858.23

Finding the Fourth Proportional to 30,469.67, 42,047.38 and 16,858.23

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Solution

The fourth proportional to 30,469.67, 42,047.38 and 16,858.23 is: 23,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.67 : 42,047.38 = 16,858.23 : x
  2. Step 2: Convert to fraction form
    30,469.67/42,047.38 = 16,858.23/x
  3. Step 3: Cross multiply
    30,469.67x = 42,047.38 × 16,858.23
  4. Step 4: Simplify right side
    30,469.67x = 708,844,424.01
  5. Step 5: Solve for x
    x = 708,844,424.01/30,469.67
  6. Step 6: Final answer
    x = 23,263.93

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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.