Home / 20,495.03-28,284.20-12,534.75

Finding the Fourth Proportional to 20,495.03, 28,284.20 and 12,534.75

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Solution

The fourth proportional to 20,495.03, 28,284.20 and 12,534.75 is: 17,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.03 : 28,284.20 = 12,534.75 : x
  2. Step 2: Convert to fraction form
    20,495.03/28,284.20 = 12,534.75/x
  3. Step 3: Cross multiply
    20,495.03x = 28,284.20 × 12,534.75
  4. Step 4: Simplify right side
    20,495.03x = 354,535,313.28
  5. Step 5: Solve for x
    x = 354,535,313.28/20,495.03
  6. Step 6: Final answer
    x = 17,298.60

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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.