Home / 20,655.31-28,504.35-11,703.42

Finding the Fourth Proportional to 20,655.31, 28,504.35 and 11,703.42

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Solution

The fourth proportional to 20,655.31, 28,504.35 and 11,703.42 is: 16,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.31 : 28,504.35 = 11,703.42 : x
  2. Step 2: Convert to fraction form
    20,655.31/28,504.35 = 11,703.42/x
  3. Step 3: Cross multiply
    20,655.31x = 28,504.35 × 11,703.42
  4. Step 4: Simplify right side
    20,655.31x = 333,598,237.36
  5. Step 5: Solve for x
    x = 333,598,237.36/20,655.31
  6. Step 6: Final answer
    x = 16,150.73

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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.