Home / 21,614.40-29,832.48-13,667.04

Finding the Fourth Proportional to 21,614.40, 29,832.48 and 13,667.04

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Solution

The fourth proportional to 21,614.40, 29,832.48 and 13,667.04 is: 18,863.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.40 : 29,832.48 = 13,667.04 : x
  2. Step 2: Convert to fraction form
    21,614.40/29,832.48 = 13,667.04/x
  3. Step 3: Cross multiply
    21,614.40x = 29,832.48 × 13,667.04
  4. Step 4: Simplify right side
    21,614.40x = 407,721,697.46
  5. Step 5: Solve for x
    x = 407,721,697.46/21,614.40
  6. Step 6: Final answer
    x = 18,863.43

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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.