Home / 30,108.95-41,557.26-20,037.81

Finding the Fourth Proportional to 30,108.95, 41,557.26 and 20,037.81

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Solution

The fourth proportional to 30,108.95, 41,557.26 and 20,037.81 is: 27,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108.95 : 41,557.26 = 20,037.81 : x
  2. Step 2: Convert to fraction form
    30,108.95/41,557.26 = 20,037.81/x
  3. Step 3: Cross multiply
    30,108.95x = 41,557.26 × 20,037.81
  4. Step 4: Simplify right side
    30,108.95x = 832,716,480.00
  5. Step 5: Solve for x
    x = 832,716,480.00/30,108.95
  6. Step 6: Final answer
    x = 27,656.78

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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.