Home / 39,946.31-55,125.69-21,797.02

Finding the Fourth Proportional to 39,946.31, 55,125.69 and 21,797.02

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Solution

The fourth proportional to 39,946.31, 55,125.69 and 21,797.02 is: 30,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,946.31 : 55,125.69 = 21,797.02 : x
  2. Step 2: Convert to fraction form
    39,946.31/55,125.69 = 21,797.02/x
  3. Step 3: Cross multiply
    39,946.31x = 55,125.69 × 21,797.02
  4. Step 4: Simplify right side
    39,946.31x = 1,201,575,658.46
  5. Step 5: Solve for x
    x = 1,201,575,658.46/39,946.31
  6. Step 6: Final answer
    x = 30,079.77

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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.