Home / 31,415.64-47,098.75-11,683.43

Finding the Fourth Proportional to 31,415.64, 47,098.75 and 11,683.43

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Solution

The fourth proportional to 31,415.64, 47,098.75 and 11,683.43 is: 17,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415.64 : 47,098.75 = 11,683.43 : x
  2. Step 2: Convert to fraction form
    31,415.64/47,098.75 = 11,683.43/x
  3. Step 3: Cross multiply
    31,415.64x = 47,098.75 × 11,683.43
  4. Step 4: Simplify right side
    31,415.64x = 550,274,948.71
  5. Step 5: Solve for x
    x = 550,274,948.71/31,415.64
  6. Step 6: Final answer
    x = 17,515.96

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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.