Home / 19,821.68-29,716.59-13,566.32

Finding the Fourth Proportional to 19,821.68, 29,716.59 and 13,566.32

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Solution

The fourth proportional to 19,821.68, 29,716.59 and 13,566.32 is: 20,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.68 : 29,716.59 = 13,566.32 : x
  2. Step 2: Convert to fraction form
    19,821.68/29,716.59 = 13,566.32/x
  3. Step 3: Cross multiply
    19,821.68x = 29,716.59 × 13,566.32
  4. Step 4: Simplify right side
    19,821.68x = 403,144,769.25
  5. Step 5: Solve for x
    x = 403,144,769.25/19,821.68
  6. Step 6: Final answer
    x = 20,338.58

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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.