Home / 35,154.75-48,519.32-20,259.39

Finding the Fourth Proportional to 35,154.75, 48,519.32 and 20,259.39

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Solution

The fourth proportional to 35,154.75, 48,519.32 and 20,259.39 is: 27,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,154.75 : 48,519.32 = 20,259.39 : x
  2. Step 2: Convert to fraction form
    35,154.75/48,519.32 = 20,259.39/x
  3. Step 3: Cross multiply
    35,154.75x = 48,519.32 × 20,259.39
  4. Step 4: Simplify right side
    35,154.75x = 982,971,725.12
  5. Step 5: Solve for x
    x = 982,971,725.12/35,154.75
  6. Step 6: Final answer
    x = 27,961.28

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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.