Home / 20,589.99-28,396.33-13,417.17

Finding the Fourth Proportional to 20,589.99, 28,396.33 and 13,417.17

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Solution

The fourth proportional to 20,589.99, 28,396.33 and 13,417.17 is: 18,504.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.99 : 28,396.33 = 13,417.17 : x
  2. Step 2: Convert to fraction form
    20,589.99/28,396.33 = 13,417.17/x
  3. Step 3: Cross multiply
    20,589.99x = 28,396.33 × 13,417.17
  4. Step 4: Simplify right side
    20,589.99x = 380,998,386.99
  5. Step 5: Solve for x
    x = 380,998,386.99/20,589.99
  6. Step 6: Final answer
    x = 18,504.06

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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.