Home / 21,455.44-29,577.49-15,062.57

Finding the Fourth Proportional to 21,455.44, 29,577.49 and 15,062.57

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Solution

The fourth proportional to 21,455.44, 29,577.49 and 15,062.57 is: 20,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.44 : 29,577.49 = 15,062.57 : x
  2. Step 2: Convert to fraction form
    21,455.44/29,577.49 = 15,062.57/x
  3. Step 3: Cross multiply
    21,455.44x = 29,577.49 × 15,062.57
  4. Step 4: Simplify right side
    21,455.44x = 445,513,013.55
  5. Step 5: Solve for x
    x = 445,513,013.55/21,455.44
  6. Step 6: Final answer
    x = 20,764.57

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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.