Home / 30,275.70-41,773.68-18,338.82

Finding the Fourth Proportional to 30,275.70, 41,773.68 and 18,338.82

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Solution

The fourth proportional to 30,275.70, 41,773.68 and 18,338.82 is: 25,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.70 : 41,773.68 = 18,338.82 : x
  2. Step 2: Convert to fraction form
    30,275.70/41,773.68 = 18,338.82/x
  3. Step 3: Cross multiply
    30,275.70x = 41,773.68 × 18,338.82
  4. Step 4: Simplify right side
    30,275.70x = 766,079,998.26
  5. Step 5: Solve for x
    x = 766,079,998.26/30,275.70
  6. Step 6: Final answer
    x = 25,303.46

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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.