Home / 28,807.29-43,212.30-13,998.57

Finding the Fourth Proportional to 28,807.29, 43,212.30 and 13,998.57

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Solution

The fourth proportional to 28,807.29, 43,212.30 and 13,998.57 is: 20,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807.29 : 43,212.30 = 13,998.57 : x
  2. Step 2: Convert to fraction form
    28,807.29/43,212.30 = 13,998.57/x
  3. Step 3: Cross multiply
    28,807.29x = 43,212.30 × 13,998.57
  4. Step 4: Simplify right side
    28,807.29x = 604,910,190.35
  5. Step 5: Solve for x
    x = 604,910,190.35/28,807.29
  6. Step 6: Final answer
    x = 20,998.51

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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.