Home / 21,293.38-29,369.23-13,735.88

Finding the Fourth Proportional to 21,293.38, 29,369.23 and 13,735.88

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Solution

The fourth proportional to 21,293.38, 29,369.23 and 13,735.88 is: 18,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.38 : 29,369.23 = 13,735.88 : x
  2. Step 2: Convert to fraction form
    21,293.38/29,369.23 = 13,735.88/x
  3. Step 3: Cross multiply
    21,293.38x = 29,369.23 × 13,735.88
  4. Step 4: Simplify right side
    21,293.38x = 403,412,225.19
  5. Step 5: Solve for x
    x = 403,412,225.19/21,293.38
  6. Step 6: Final answer
    x = 18,945.43

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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.