Home / 28,519.04-39,356.26-17,188.70

Finding the Fourth Proportional to 28,519.04, 39,356.26 and 17,188.70

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Solution

The fourth proportional to 28,519.04, 39,356.26 and 17,188.70 is: 23,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.04 : 39,356.26 = 17,188.70 : x
  2. Step 2: Convert to fraction form
    28,519.04/39,356.26 = 17,188.70/x
  3. Step 3: Cross multiply
    28,519.04x = 39,356.26 × 17,188.70
  4. Step 4: Simplify right side
    28,519.04x = 676,482,706.51
  5. Step 5: Solve for x
    x = 676,482,706.51/28,519.04
  6. Step 6: Final answer
    x = 23,720.39

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Similar ratio
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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.