Home / 28,830.52-39,786.10-15,582.52

Finding the Fourth Proportional to 28,830.52, 39,786.10 and 15,582.52

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Solution

The fourth proportional to 28,830.52, 39,786.10 and 15,582.52 is: 21,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.52 : 39,786.10 = 15,582.52 : x
  2. Step 2: Convert to fraction form
    28,830.52/39,786.10 = 15,582.52/x
  3. Step 3: Cross multiply
    28,830.52x = 39,786.10 × 15,582.52
  4. Step 4: Simplify right side
    28,830.52x = 619,967,698.97
  5. Step 5: Solve for x
    x = 619,967,698.97/28,830.52
  6. Step 6: Final answer
    x = 21,503.87

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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.