Home / 20,501.88-28,087.68-19,734

Finding the Fourth Proportional to 20,501.88, 28,087.68 and 19,734

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Solution

The fourth proportional to 20,501.88, 28,087.68 and 19,734 is: 27,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.88 : 28,087.68 = 19,734 : x
  2. Step 2: Convert to fraction form
    20,501.88/28,087.68 = 19,734/x
  3. Step 3: Cross multiply
    20,501.88x = 28,087.68 × 19,734
  4. Step 4: Simplify right side
    20,501.88x = 554,282,277.12
  5. Step 5: Solve for x
    x = 554,282,277.12/20,501.88
  6. Step 6: Final answer
    x = 27,035.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.