Home / 35,085.39-48,401.60-20,172.75

Finding the Fourth Proportional to 35,085.39, 48,401.60 and 20,172.75

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Solution

The fourth proportional to 35,085.39, 48,401.60 and 20,172.75 is: 27,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,085.39 : 48,401.60 = 20,172.75 : x
  2. Step 2: Convert to fraction form
    35,085.39/48,401.60 = 20,172.75/x
  3. Step 3: Cross multiply
    35,085.39x = 48,401.60 × 20,172.75
  4. Step 4: Simplify right side
    35,085.39x = 976,393,275.54
  5. Step 5: Solve for x
    x = 976,393,275.54/35,085.39
  6. Step 6: Final answer
    x = 27,829.06

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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.