Home / 28,542.30-39,386.79-15,964.62

Finding the Fourth Proportional to 28,542.30, 39,386.79 and 15,964.62

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Solution

The fourth proportional to 28,542.30, 39,386.79 and 15,964.62 is: 22,030.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.30 : 39,386.79 = 15,964.62 : x
  2. Step 2: Convert to fraction form
    28,542.30/39,386.79 = 15,964.62/x
  3. Step 3: Cross multiply
    28,542.30x = 39,386.79 × 15,964.62
  4. Step 4: Simplify right side
    28,542.30x = 628,795,135.37
  5. Step 5: Solve for x
    x = 628,795,135.37/28,542.30
  6. Step 6: Final answer
    x = 22,030.29

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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.