Home / 20,962.62-28,928.25-11,402.51

Finding the Fourth Proportional to 20,962.62, 28,928.25 and 11,402.51

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Solution

The fourth proportional to 20,962.62, 28,928.25 and 11,402.51 is: 15,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.62 : 28,928.25 = 11,402.51 : x
  2. Step 2: Convert to fraction form
    20,962.62/28,928.25 = 11,402.51/x
  3. Step 3: Cross multiply
    20,962.62x = 28,928.25 × 11,402.51
  4. Step 4: Simplify right side
    20,962.62x = 329,854,515.27
  5. Step 5: Solve for x
    x = 329,854,515.27/20,962.62
  6. Step 6: Final answer
    x = 15,735.37

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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.