Home / 28,867.80-43,301.70-19,512.30

Finding the Fourth Proportional to 28,867.80, 43,301.70 and 19,512.30

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Solution

The fourth proportional to 28,867.80, 43,301.70 and 19,512.30 is: 29,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.80 : 43,301.70 = 19,512.30 : x
  2. Step 2: Convert to fraction form
    28,867.80/43,301.70 = 19,512.30/x
  3. Step 3: Cross multiply
    28,867.80x = 43,301.70 × 19,512.30
  4. Step 4: Simplify right side
    28,867.80x = 844,915,760.91
  5. Step 5: Solve for x
    x = 844,915,760.91/28,867.80
  6. Step 6: Final answer
    x = 29,268.45

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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.