Home / 31,661.06-47,465.31-11,928.74

Finding the Fourth Proportional to 31,661.06, 47,465.31 and 11,928.74

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Solution

The fourth proportional to 31,661.06, 47,465.31 and 11,928.74 is: 17,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.06 : 47,465.31 = 11,928.74 : x
  2. Step 2: Convert to fraction form
    31,661.06/47,465.31 = 11,928.74/x
  3. Step 3: Cross multiply
    31,661.06x = 47,465.31 × 11,928.74
  4. Step 4: Simplify right side
    31,661.06x = 566,201,342.01
  5. Step 5: Solve for x
    x = 566,201,342.01/31,661.06
  6. Step 6: Final answer
    x = 17,883.21

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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.