Home / 21,618.69-32,386.07-14,200.64

Finding the Fourth Proportional to 21,618.69, 32,386.07 and 14,200.64

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Solution

The fourth proportional to 21,618.69, 32,386.07 and 14,200.64 is: 21,273.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.69 : 32,386.07 = 14,200.64 : x
  2. Step 2: Convert to fraction form
    21,618.69/32,386.07 = 14,200.64/x
  3. Step 3: Cross multiply
    21,618.69x = 32,386.07 × 14,200.64
  4. Step 4: Simplify right side
    21,618.69x = 459,902,921.08
  5. Step 5: Solve for x
    x = 459,902,921.08/21,618.69
  6. Step 6: Final answer
    x = 21,273.39

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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.