Home / 28,955.52-39,959.46-16,380

Finding the Fourth Proportional to 28,955.52, 39,959.46 and 16,380

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Solution

The fourth proportional to 28,955.52, 39,959.46 and 16,380 is: 22,604.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.52 : 39,959.46 = 16,380 : x
  2. Step 2: Convert to fraction form
    28,955.52/39,959.46 = 16,380/x
  3. Step 3: Cross multiply
    28,955.52x = 39,959.46 × 16,380
  4. Step 4: Simplify right side
    28,955.52x = 654,535,954.80
  5. Step 5: Solve for x
    x = 654,535,954.80/28,955.52
  6. Step 6: Final answer
    x = 22,604.88

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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.