Home / 30,139.77-41,593.73-18,205.23

Finding the Fourth Proportional to 30,139.77, 41,593.73 and 18,205.23

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Solution

The fourth proportional to 30,139.77, 41,593.73 and 18,205.23 is: 25,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.77 : 41,593.73 = 18,205.23 : x
  2. Step 2: Convert to fraction form
    30,139.77/41,593.73 = 18,205.23/x
  3. Step 3: Cross multiply
    30,139.77x = 41,593.73 × 18,205.23
  4. Step 4: Simplify right side
    30,139.77x = 757,223,330.18
  5. Step 5: Solve for x
    x = 757,223,330.18/30,139.77
  6. Step 6: Final answer
    x = 25,123.73

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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.