Home / 21,799.90-30,082.86-14,242.60

Finding the Fourth Proportional to 21,799.90, 30,082.86 and 14,242.60

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Solution

The fourth proportional to 21,799.90, 30,082.86 and 14,242.60 is: 19,654.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.90 : 30,082.86 = 14,242.60 : x
  2. Step 2: Convert to fraction form
    21,799.90/30,082.86 = 14,242.60/x
  3. Step 3: Cross multiply
    21,799.90x = 30,082.86 × 14,242.60
  4. Step 4: Simplify right side
    21,799.90x = 428,458,141.84
  5. Step 5: Solve for x
    x = 428,458,141.84/21,799.90
  6. Step 6: Final answer
    x = 19,654.13

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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.