Home / 28,506.07-39,338.43-15,930.82

Finding the Fourth Proportional to 28,506.07, 39,338.43 and 15,930.82

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Solution

The fourth proportional to 28,506.07, 39,338.43 and 15,930.82 is: 21,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.07 : 39,338.43 = 15,930.82 : x
  2. Step 2: Convert to fraction form
    28,506.07/39,338.43 = 15,930.82/x
  3. Step 3: Cross multiply
    28,506.07x = 39,338.43 × 15,930.82
  4. Step 4: Simplify right side
    28,506.07x = 626,693,250.72
  5. Step 5: Solve for x
    x = 626,693,250.72/28,506.07
  6. Step 6: Final answer
    x = 21,984.56

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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.