Home / 35,345.97-48,778.61-19,431.09

Finding the Fourth Proportional to 35,345.97, 48,778.61 and 19,431.09

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Solution

The fourth proportional to 35,345.97, 48,778.61 and 19,431.09 is: 26,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,345.97 : 48,778.61 = 19,431.09 : x
  2. Step 2: Convert to fraction form
    35,345.97/48,778.61 = 19,431.09/x
  3. Step 3: Cross multiply
    35,345.97x = 48,778.61 × 19,431.09
  4. Step 4: Simplify right side
    35,345.97x = 947,821,463.83
  5. Step 5: Solve for x
    x = 947,821,463.83/35,345.97
  6. Step 6: Final answer
    x = 26,815.55

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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.