Home / 20,564.99-30,859.77-18,891.93

Finding the Fourth Proportional to 20,564.99, 30,859.77 and 18,891.93

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Solution

The fourth proportional to 20,564.99, 30,859.77 and 18,891.93 is: 28,349.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.99 : 30,859.77 = 18,891.93 : x
  2. Step 2: Convert to fraction form
    20,564.99/30,859.77 = 18,891.93/x
  3. Step 3: Cross multiply
    20,564.99x = 30,859.77 × 18,891.93
  4. Step 4: Simplify right side
    20,564.99x = 583,000,694.96
  5. Step 5: Solve for x
    x = 583,000,694.96/20,564.99
  6. Step 6: Final answer
    x = 28,349.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.