Home / 31,378.02-46,949.39-18,681.33

Finding the Fourth Proportional to 31,378.02, 46,949.39 and 18,681.33

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Solution

The fourth proportional to 31,378.02, 46,949.39 and 18,681.33 is: 27,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.02 : 46,949.39 = 18,681.33 : x
  2. Step 2: Convert to fraction form
    31,378.02/46,949.39 = 18,681.33/x
  3. Step 3: Cross multiply
    31,378.02x = 46,949.39 × 18,681.33
  4. Step 4: Simplify right side
    31,378.02x = 877,076,954.48
  5. Step 5: Solve for x
    x = 877,076,954.48/31,378.02
  6. Step 6: Final answer
    x = 27,951.95

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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.