Home / 20,903.07-28,846.11-11,342.75

Finding the Fourth Proportional to 20,903.07, 28,846.11 and 11,342.75

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Solution

The fourth proportional to 20,903.07, 28,846.11 and 11,342.75 is: 15,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.07 : 28,846.11 = 11,342.75 : x
  2. Step 2: Convert to fraction form
    20,903.07/28,846.11 = 11,342.75/x
  3. Step 3: Cross multiply
    20,903.07x = 28,846.11 × 11,342.75
  4. Step 4: Simplify right side
    20,903.07x = 327,194,214.20
  5. Step 5: Solve for x
    x = 327,194,214.20/20,903.07
  6. Step 6: Final answer
    x = 15,652.93

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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.