Home / 28,409.62-42,619.29-16,716.46

Finding the Fourth Proportional to 28,409.62, 42,619.29 and 16,716.46

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Solution

The fourth proportional to 28,409.62, 42,619.29 and 16,716.46 is: 25,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.62 : 42,619.29 = 16,716.46 : x
  2. Step 2: Convert to fraction form
    28,409.62/42,619.29 = 16,716.46/x
  3. Step 3: Cross multiply
    28,409.62x = 42,619.29 × 16,716.46
  4. Step 4: Simplify right side
    28,409.62x = 712,443,656.51
  5. Step 5: Solve for x
    x = 712,443,656.51/28,409.62
  6. Step 6: Final answer
    x = 25,077.55

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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.