Home / 31,941.85-47,922.02-13,218.43

Finding the Fourth Proportional to 31,941.85, 47,922.02 and 13,218.43

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Solution

The fourth proportional to 31,941.85, 47,922.02 and 13,218.43 is: 19,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.85 : 47,922.02 = 13,218.43 : x
  2. Step 2: Convert to fraction form
    31,941.85/47,922.02 = 13,218.43/x
  3. Step 3: Cross multiply
    31,941.85x = 47,922.02 × 13,218.43
  4. Step 4: Simplify right side
    31,941.85x = 633,453,866.83
  5. Step 5: Solve for x
    x = 633,453,866.83/31,941.85
  6. Step 6: Final answer
    x = 19,831.47

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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.