Home / 28,871.37-43,290.64-11,331.63

Finding the Fourth Proportional to 28,871.37, 43,290.64 and 11,331.63

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Solution

The fourth proportional to 28,871.37, 43,290.64 and 11,331.63 is: 16,991.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.37 : 43,290.64 = 11,331.63 : x
  2. Step 2: Convert to fraction form
    28,871.37/43,290.64 = 11,331.63/x
  3. Step 3: Cross multiply
    28,871.37x = 43,290.64 × 11,331.63
  4. Step 4: Simplify right side
    28,871.37x = 490,553,514.94
  5. Step 5: Solve for x
    x = 490,553,514.94/28,871.37
  6. Step 6: Final answer
    x = 16,991.00

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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.