Home / 30,423.45-45,601.26-12,644.19

Finding the Fourth Proportional to 30,423.45, 45,601.26 and 12,644.19

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Solution

The fourth proportional to 30,423.45, 45,601.26 and 12,644.19 is: 18,952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,423.45 : 45,601.26 = 12,644.19 : x
  2. Step 2: Convert to fraction form
    30,423.45/45,601.26 = 12,644.19/x
  3. Step 3: Cross multiply
    30,423.45x = 45,601.26 × 12,644.19
  4. Step 4: Simplify right side
    30,423.45x = 576,590,995.68
  5. Step 5: Solve for x
    x = 576,590,995.68/30,423.45
  6. Step 6: Final answer
    x = 18,952.19

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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.