Home / 28,669.77-43,016.85-13,889.70

Finding the Fourth Proportional to 28,669.77, 43,016.85 and 13,889.70

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Solution

The fourth proportional to 28,669.77, 43,016.85 and 13,889.70 is: 20,840.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.77 : 43,016.85 = 13,889.70 : x
  2. Step 2: Convert to fraction form
    28,669.77/43,016.85 = 13,889.70/x
  3. Step 3: Cross multiply
    28,669.77x = 43,016.85 × 13,889.70
  4. Step 4: Simplify right side
    28,669.77x = 597,491,141.45
  5. Step 5: Solve for x
    x = 597,491,141.45/28,669.77
  6. Step 6: Final answer
    x = 20,840.46

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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.