Home / 20,725.11-28,617.53-16,897.37

Finding the Fourth Proportional to 20,725.11, 28,617.53 and 16,897.37

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Solution

The fourth proportional to 20,725.11, 28,617.53 and 16,897.37 is: 23,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.11 : 28,617.53 = 16,897.37 : x
  2. Step 2: Convert to fraction form
    20,725.11/28,617.53 = 16,897.37/x
  3. Step 3: Cross multiply
    20,725.11x = 28,617.53 × 16,897.37
  4. Step 4: Simplify right side
    20,725.11x = 483,560,765.32
  5. Step 5: Solve for x
    x = 483,560,765.32/20,725.11
  6. Step 6: Final answer
    x = 23,332.12

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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.