Home / 28,242.26-38,974.36-15,667.01

Finding the Fourth Proportional to 28,242.26, 38,974.36 and 15,667.01

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Solution

The fourth proportional to 28,242.26, 38,974.36 and 15,667.01 is: 21,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.26 : 38,974.36 = 15,667.01 : x
  2. Step 2: Convert to fraction form
    28,242.26/38,974.36 = 15,667.01/x
  3. Step 3: Cross multiply
    28,242.26x = 38,974.36 × 15,667.01
  4. Step 4: Simplify right side
    28,242.26x = 610,611,609.53
  5. Step 5: Solve for x
    x = 610,611,609.53/28,242.26
  6. Step 6: Final answer
    x = 21,620.49

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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.