Home / 26,478.47-39,709.28-8,705.03

Finding the Fourth Proportional to 26,478.47, 39,709.28 and 8,705.03

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Solution

The fourth proportional to 26,478.47, 39,709.28 and 8,705.03 is: 13,054.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.47 : 39,709.28 = 8,705.03 : x
  2. Step 2: Convert to fraction form
    26,478.47/39,709.28 = 8,705.03/x
  3. Step 3: Cross multiply
    26,478.47x = 39,709.28 × 8,705.03
  4. Step 4: Simplify right side
    26,478.47x = 345,670,296.89
  5. Step 5: Solve for x
    x = 345,670,296.89/26,478.47
  6. Step 6: Final answer
    x = 13,054.77

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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.