Home / 19,317.12-28,976.32-14,068.16

Finding the Fourth Proportional to 19,317.12, 28,976.32 and 14,068.16

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Solution

The fourth proportional to 19,317.12, 28,976.32 and 14,068.16 is: 21,102.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.12 : 28,976.32 = 14,068.16 : x
  2. Step 2: Convert to fraction form
    19,317.12/28,976.32 = 14,068.16/x
  3. Step 3: Cross multiply
    19,317.12x = 28,976.32 × 14,068.16
  4. Step 4: Simplify right side
    19,317.12x = 407,643,505.97
  5. Step 5: Solve for x
    x = 407,643,505.97/19,317.12
  6. Step 6: Final answer
    x = 21,102.71

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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.