Home / 26,478.36-39,656.79-15,357.47

Finding the Fourth Proportional to 26,478.36, 39,656.79 and 15,357.47

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Solution

The fourth proportional to 26,478.36, 39,656.79 and 15,357.47 is: 23,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,478.36 : 39,656.79 = 15,357.47 : x
  2. Step 2: Convert to fraction form
    26,478.36/39,656.79 = 15,357.47/x
  3. Step 3: Cross multiply
    26,478.36x = 39,656.79 × 15,357.47
  4. Step 4: Simplify right side
    26,478.36x = 609,027,764.44
  5. Step 5: Solve for x
    x = 609,027,764.44/26,478.36
  6. Step 6: Final answer
    x = 23,000.96

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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.