Home / 28,513.37-42,767.31-8,786.63

Finding the Fourth Proportional to 28,513.37, 42,767.31 and 8,786.63

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Solution

The fourth proportional to 28,513.37, 42,767.31 and 8,786.63 is: 13,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.37 : 42,767.31 = 8,786.63 : x
  2. Step 2: Convert to fraction form
    28,513.37/42,767.31 = 8,786.63/x
  3. Step 3: Cross multiply
    28,513.37x = 42,767.31 × 8,786.63
  4. Step 4: Simplify right side
    28,513.37x = 375,780,315.23
  5. Step 5: Solve for x
    x = 375,780,315.23/28,513.37
  6. Step 6: Final answer
    x = 13,179.09

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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.