Home / 39,918.78-55,090.76-22,927.95

Finding the Fourth Proportional to 39,918.78, 55,090.76 and 22,927.95

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Solution

The fourth proportional to 39,918.78, 55,090.76 and 22,927.95 is: 31,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,918.78 : 55,090.76 = 22,927.95 : x
  2. Step 2: Convert to fraction form
    39,918.78/55,090.76 = 22,927.95/x
  3. Step 3: Cross multiply
    39,918.78x = 55,090.76 × 22,927.95
  4. Step 4: Simplify right side
    39,918.78x = 1,263,118,076.10
  5. Step 5: Solve for x
    x = 1,263,118,076.10/39,918.78
  6. Step 6: Final answer
    x = 31,642.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.