Home / 30,305.02-41,833.83-20,374.78

Finding the Fourth Proportional to 30,305.02, 41,833.83 and 20,374.78

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Solution

The fourth proportional to 30,305.02, 41,833.83 and 20,374.78 is: 28,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.02 : 41,833.83 = 20,374.78 : x
  2. Step 2: Convert to fraction form
    30,305.02/41,833.83 = 20,374.78/x
  3. Step 3: Cross multiply
    30,305.02x = 41,833.83 × 20,374.78
  4. Step 4: Simplify right side
    30,305.02x = 852,355,082.81
  5. Step 5: Solve for x
    x = 852,355,082.81/30,305.02
  6. Step 6: Final answer
    x = 28,125.87

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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.