Home / 21,867.61-32,810.64-10,774.39

Finding the Fourth Proportional to 21,867.61, 32,810.64 and 10,774.39

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Solution

The fourth proportional to 21,867.61, 32,810.64 and 10,774.39 is: 16,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.61 : 32,810.64 = 10,774.39 : x
  2. Step 2: Convert to fraction form
    21,867.61/32,810.64 = 10,774.39/x
  3. Step 3: Cross multiply
    21,867.61x = 32,810.64 × 10,774.39
  4. Step 4: Simplify right side
    21,867.61x = 353,514,577.64
  5. Step 5: Solve for x
    x = 353,514,577.64/21,867.61
  6. Step 6: Final answer
    x = 16,166.13

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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.