Home / 30,423.56-45,604.32-20,563.84

Finding the Fourth Proportional to 30,423.56, 45,604.32 and 20,563.84

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Solution

The fourth proportional to 30,423.56, 45,604.32 and 20,563.84 is: 30,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.56 : 45,604.32 = 20,563.84 : x
  2. Step 2: Convert to fraction form
    30,423.56/45,604.32 = 20,563.84/x
  3. Step 3: Cross multiply
    30,423.56x = 45,604.32 × 20,563.84
  4. Step 4: Simplify right side
    30,423.56x = 937,799,939.79
  5. Step 5: Solve for x
    x = 937,799,939.79/30,423.56
  6. Step 6: Final answer
    x = 30,824.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.