Home / 28,042.74-38,698.82-15,295.68

Finding the Fourth Proportional to 28,042.74, 38,698.82 and 15,295.68

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Solution

The fourth proportional to 28,042.74, 38,698.82 and 15,295.68 is: 21,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.74 : 38,698.82 = 15,295.68 : x
  2. Step 2: Convert to fraction form
    28,042.74/38,698.82 = 15,295.68/x
  3. Step 3: Cross multiply
    28,042.74x = 38,698.82 × 15,295.68
  4. Step 4: Simplify right side
    28,042.74x = 591,924,767.10
  5. Step 5: Solve for x
    x = 591,924,767.10/28,042.74
  6. Step 6: Final answer
    x = 21,107.95

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1.5x scale

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.