Home / 35,490.24-48,971.16-20,383.56

Finding the Fourth Proportional to 35,490.24, 48,971.16 and 20,383.56

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Solution

The fourth proportional to 35,490.24, 48,971.16 and 20,383.56 is: 28,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.24 : 48,971.16 = 20,383.56 : x
  2. Step 2: Convert to fraction form
    35,490.24/48,971.16 = 20,383.56/x
  3. Step 3: Cross multiply
    35,490.24x = 48,971.16 × 20,383.56
  4. Step 4: Simplify right side
    35,490.24x = 998,206,578.13
  5. Step 5: Solve for x
    x = 998,206,578.13/35,490.24
  6. Step 6: Final answer
    x = 28,126.23

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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.