Home / 20,805.68-28,716.93-17,443.17

Finding the Fourth Proportional to 20,805.68, 28,716.93 and 17,443.17

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Solution

The fourth proportional to 20,805.68, 28,716.93 and 17,443.17 is: 24,075.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805.68 : 28,716.93 = 17,443.17 : x
  2. Step 2: Convert to fraction form
    20,805.68/28,716.93 = 17,443.17/x
  3. Step 3: Cross multiply
    20,805.68x = 28,716.93 × 17,443.17
  4. Step 4: Simplify right side
    20,805.68x = 500,914,291.87
  5. Step 5: Solve for x
    x = 500,914,291.87/20,805.68
  6. Step 6: Final answer
    x = 24,075.84

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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.