Home / 31,419.36-47,100.96-11,684.16

Finding the Fourth Proportional to 31,419.36, 47,100.96 and 11,684.16

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Solution

The fourth proportional to 31,419.36, 47,100.96 and 11,684.16 is: 17,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.36 : 47,100.96 = 11,684.16 : x
  2. Step 2: Convert to fraction form
    31,419.36/47,100.96 = 11,684.16/x
  3. Step 3: Cross multiply
    31,419.36x = 47,100.96 × 11,684.16
  4. Step 4: Simplify right side
    31,419.36x = 550,335,152.79
  5. Step 5: Solve for x
    x = 550,335,152.79/31,419.36
  6. Step 6: Final answer
    x = 17,515.80

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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.