Home / 20,725.88-28,601.51-11,294.37

Finding the Fourth Proportional to 20,725.88, 28,601.51 and 11,294.37

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Solution

The fourth proportional to 20,725.88, 28,601.51 and 11,294.37 is: 15,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.88 : 28,601.51 = 11,294.37 : x
  2. Step 2: Convert to fraction form
    20,725.88/28,601.51 = 11,294.37/x
  3. Step 3: Cross multiply
    20,725.88x = 28,601.51 × 11,294.37
  4. Step 4: Simplify right side
    20,725.88x = 323,035,980.03
  5. Step 5: Solve for x
    x = 323,035,980.03/20,725.88
  6. Step 6: Final answer
    x = 15,586.12

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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.