Home / 20,629.13-28,475.57-12,245.63

Finding the Fourth Proportional to 20,629.13, 28,475.57 and 12,245.63

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Solution

The fourth proportional to 20,629.13, 28,475.57 and 12,245.63 is: 16,903.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.13 : 28,475.57 = 12,245.63 : x
  2. Step 2: Convert to fraction form
    20,629.13/28,475.57 = 12,245.63/x
  3. Step 3: Cross multiply
    20,629.13x = 28,475.57 × 12,245.63
  4. Step 4: Simplify right side
    20,629.13x = 348,701,182.50
  5. Step 5: Solve for x
    x = 348,701,182.50/20,629.13
  6. Step 6: Final answer
    x = 16,903.34

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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.