Home / 39,900.96-55,053.12-25,359.84

Finding the Fourth Proportional to 39,900.96, 55,053.12 and 25,359.84

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Solution

The fourth proportional to 39,900.96, 55,053.12 and 25,359.84 is: 34,990.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,900.96 : 55,053.12 = 25,359.84 : x
  2. Step 2: Convert to fraction form
    39,900.96/55,053.12 = 25,359.84/x
  3. Step 3: Cross multiply
    39,900.96x = 55,053.12 × 25,359.84
  4. Step 4: Simplify right side
    39,900.96x = 1,396,138,314.70
  5. Step 5: Solve for x
    x = 1,396,138,314.70/39,900.96
  6. Step 6: Final answer
    x = 34,990.09

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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.