Home / 28,851.90-43,282.35-9,128.58

Finding the Fourth Proportional to 28,851.90, 43,282.35 and 9,128.58

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Solution

The fourth proportional to 28,851.90, 43,282.35 and 9,128.58 is: 13,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.90 : 43,282.35 = 9,128.58 : x
  2. Step 2: Convert to fraction form
    28,851.90/43,282.35 = 9,128.58/x
  3. Step 3: Cross multiply
    28,851.90x = 43,282.35 × 9,128.58
  4. Step 4: Simplify right side
    28,851.90x = 395,106,394.56
  5. Step 5: Solve for x
    x = 395,106,394.56/28,851.90
  6. Step 6: Final answer
    x = 13,694.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.