Home / 21,353.22-29,442.69-13,799.16

Finding the Fourth Proportional to 21,353.22, 29,442.69 and 13,799.16

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Solution

The fourth proportional to 21,353.22, 29,442.69 and 13,799.16 is: 19,026.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,353.22 : 29,442.69 = 13,799.16 : x
  2. Step 2: Convert to fraction form
    21,353.22/29,442.69 = 13,799.16/x
  3. Step 3: Cross multiply
    21,353.22x = 29,442.69 × 13,799.16
  4. Step 4: Simplify right side
    21,353.22x = 406,284,390.14
  5. Step 5: Solve for x
    x = 406,284,390.14/21,353.22
  6. Step 6: Final answer
    x = 19,026.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.