Home / 30,283.32-41,755.23-20,727.81

Finding the Fourth Proportional to 30,283.32, 41,755.23 and 20,727.81

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Solution

The fourth proportional to 30,283.32, 41,755.23 and 20,727.81 is: 28,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,283.32 : 41,755.23 = 20,727.81 : x
  2. Step 2: Convert to fraction form
    30,283.32/41,755.23 = 20,727.81/x
  3. Step 3: Cross multiply
    30,283.32x = 41,755.23 × 20,727.81
  4. Step 4: Simplify right side
    30,283.32x = 865,494,473.95
  5. Step 5: Solve for x
    x = 865,494,473.95/30,283.32
  6. Step 6: Final answer
    x = 28,579.91

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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.