Home / 23,030.80-34,469.40-21,187.60

Finding the Fourth Proportional to 23,030.80, 34,469.40 and 21,187.60

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Solution

The fourth proportional to 23,030.80, 34,469.40 and 21,187.60 is: 31,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.80 : 34,469.40 = 21,187.60 : x
  2. Step 2: Convert to fraction form
    23,030.80/34,469.40 = 21,187.60/x
  3. Step 3: Cross multiply
    23,030.80x = 34,469.40 × 21,187.60
  4. Step 4: Simplify right side
    23,030.80x = 730,323,859.44
  5. Step 5: Solve for x
    x = 730,323,859.44/23,030.80
  6. Step 6: Final answer
    x = 31,710.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.