Home / 26,645.94-39,980.70-13,992.72

Finding the Fourth Proportional to 26,645.94, 39,980.70 and 13,992.72

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Solution

The fourth proportional to 26,645.94, 39,980.70 and 13,992.72 is: 20,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,645.94 : 39,980.70 = 13,992.72 : x
  2. Step 2: Convert to fraction form
    26,645.94/39,980.70 = 13,992.72/x
  3. Step 3: Cross multiply
    26,645.94x = 39,980.70 × 13,992.72
  4. Step 4: Simplify right side
    26,645.94x = 559,438,740.50
  5. Step 5: Solve for x
    x = 559,438,740.50/26,645.94
  6. Step 6: Final answer
    x = 20,995.27

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Similar ratio
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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.