Home / 26,431.07-39,648.43-7,710.81

Finding the Fourth Proportional to 26,431.07, 39,648.43 and 7,710.81

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Solution

The fourth proportional to 26,431.07, 39,648.43 and 7,710.81 is: 11,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.07 : 39,648.43 = 7,710.81 : x
  2. Step 2: Convert to fraction form
    26,431.07/39,648.43 = 7,710.81/x
  3. Step 3: Cross multiply
    26,431.07x = 39,648.43 × 7,710.81
  4. Step 4: Simplify right side
    26,431.07x = 305,721,510.53
  5. Step 5: Solve for x
    x = 305,721,510.53/26,431.07
  6. Step 6: Final answer
    x = 11,566.75

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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.