Home / 30,525.36-42,122.97-16,912.50

Finding the Fourth Proportional to 30,525.36, 42,122.97 and 16,912.50

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Solution

The fourth proportional to 30,525.36, 42,122.97 and 16,912.50 is: 23,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,525.36 : 42,122.97 = 16,912.50 : x
  2. Step 2: Convert to fraction form
    30,525.36/42,122.97 = 16,912.50/x
  3. Step 3: Cross multiply
    30,525.36x = 42,122.97 × 16,912.50
  4. Step 4: Simplify right side
    30,525.36x = 712,404,730.13
  5. Step 5: Solve for x
    x = 712,404,730.13/30,525.36
  6. Step 6: Final answer
    x = 23,338.13

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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.