Home / 28,851.58-43,282.23-9,129.70

Finding the Fourth Proportional to 28,851.58, 43,282.23 and 9,129.70

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Solution

The fourth proportional to 28,851.58, 43,282.23 and 9,129.70 is: 13,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.58 : 43,282.23 = 9,129.70 : x
  2. Step 2: Convert to fraction form
    28,851.58/43,282.23 = 9,129.70/x
  3. Step 3: Cross multiply
    28,851.58x = 43,282.23 × 9,129.70
  4. Step 4: Simplify right side
    28,851.58x = 395,153,775.23
  5. Step 5: Solve for x
    x = 395,153,775.23/28,851.58
  6. Step 6: Final answer
    x = 13,696.09

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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.