Home / 20,675.86-28,532.49-11,244.50

Finding the Fourth Proportional to 20,675.86, 28,532.49 and 11,244.50

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Solution

The fourth proportional to 20,675.86, 28,532.49 and 11,244.50 is: 15,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.86 : 28,532.49 = 11,244.50 : x
  2. Step 2: Convert to fraction form
    20,675.86/28,532.49 = 11,244.50/x
  3. Step 3: Cross multiply
    20,675.86x = 28,532.49 × 11,244.50
  4. Step 4: Simplify right side
    20,675.86x = 320,833,583.81
  5. Step 5: Solve for x
    x = 320,833,583.81/20,675.86
  6. Step 6: Final answer
    x = 15,517.30

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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.