Home / 28,731.52-39,644.88-16,155.52

Finding the Fourth Proportional to 28,731.52, 39,644.88 and 16,155.52

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Solution

The fourth proportional to 28,731.52, 39,644.88 and 16,155.52 is: 22,292.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.52 : 39,644.88 = 16,155.52 : x
  2. Step 2: Convert to fraction form
    28,731.52/39,644.88 = 16,155.52/x
  3. Step 3: Cross multiply
    28,731.52x = 39,644.88 × 16,155.52
  4. Step 4: Simplify right side
    28,731.52x = 640,483,651.74
  5. Step 5: Solve for x
    x = 640,483,651.74/28,731.52
  6. Step 6: Final answer
    x = 22,292.02

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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.