Home / 28,563.31-39,396.12-18,483.97

Finding the Fourth Proportional to 28,563.31, 39,396.12 and 18,483.97

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Solution

The fourth proportional to 28,563.31, 39,396.12 and 18,483.97 is: 25,494.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.31 : 39,396.12 = 18,483.97 : x
  2. Step 2: Convert to fraction form
    28,563.31/39,396.12 = 18,483.97/x
  3. Step 3: Cross multiply
    28,563.31x = 39,396.12 × 18,483.97
  4. Step 4: Simplify right side
    28,563.31x = 728,196,710.23
  5. Step 5: Solve for x
    x = 728,196,710.23/28,563.31
  6. Step 6: Final answer
    x = 25,494.13

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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.