Home / 20,352.03-28,102.02-13,552.68

Finding the Fourth Proportional to 20,352.03, 28,102.02 and 13,552.68

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Solution

The fourth proportional to 20,352.03, 28,102.02 and 13,552.68 is: 18,713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.03 : 28,102.02 = 13,552.68 : x
  2. Step 2: Convert to fraction form
    20,352.03/28,102.02 = 13,552.68/x
  3. Step 3: Cross multiply
    20,352.03x = 28,102.02 × 13,552.68
  4. Step 4: Simplify right side
    20,352.03x = 380,857,684.41
  5. Step 5: Solve for x
    x = 380,857,684.41/20,352.03
  6. Step 6: Final answer
    x = 18,713.50

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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.