Home / 21,442.62-32,275.71-19,405.02

Finding the Fourth Proportional to 21,442.62, 32,275.71 and 19,405.02

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Solution

The fourth proportional to 21,442.62, 32,275.71 and 19,405.02 is: 29,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.62 : 32,275.71 = 19,405.02 : x
  2. Step 2: Convert to fraction form
    21,442.62/32,275.71 = 19,405.02/x
  3. Step 3: Cross multiply
    21,442.62x = 32,275.71 × 19,405.02
  4. Step 4: Simplify right side
    21,442.62x = 626,310,798.06
  5. Step 5: Solve for x
    x = 626,310,798.06/21,442.62
  6. Step 6: Final answer
    x = 29,208.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.