Home / 28,767.36-43,058.70-15,421.80

Finding the Fourth Proportional to 28,767.36, 43,058.70 and 15,421.80

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Solution

The fourth proportional to 28,767.36, 43,058.70 and 15,421.80 is: 23,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,767.36 : 43,058.70 = 15,421.80 : x
  2. Step 2: Convert to fraction form
    28,767.36/43,058.70 = 15,421.80/x
  3. Step 3: Cross multiply
    28,767.36x = 43,058.70 × 15,421.80
  4. Step 4: Simplify right side
    28,767.36x = 664,042,659.66
  5. Step 5: Solve for x
    x = 664,042,659.66/28,767.36
  6. Step 6: Final answer
    x = 23,083.20

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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.