Home / 20,575.30-28,394.50-11,623.18

Finding the Fourth Proportional to 20,575.30, 28,394.50 and 11,623.18

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Solution

The fourth proportional to 20,575.30, 28,394.50 and 11,623.18 is: 16,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.30 : 28,394.50 = 11,623.18 : x
  2. Step 2: Convert to fraction form
    20,575.30/28,394.50 = 11,623.18/x
  3. Step 3: Cross multiply
    20,575.30x = 28,394.50 × 11,623.18
  4. Step 4: Simplify right side
    20,575.30x = 330,034,284.47
  5. Step 5: Solve for x
    x = 330,034,284.47/20,575.30
  6. Step 6: Final answer
    x = 16,040.32

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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.