Home / 47,423.09-65,438.25-28,299.32

Finding the Fourth Proportional to 47,423.09, 65,438.25 and 28,299.32

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Solution

The fourth proportional to 47,423.09, 65,438.25 and 28,299.32 is: 39,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,423.09 : 65,438.25 = 28,299.32 : x
  2. Step 2: Convert to fraction form
    47,423.09/65,438.25 = 28,299.32/x
  3. Step 3: Cross multiply
    47,423.09x = 65,438.25 × 28,299.32
  4. Step 4: Simplify right side
    47,423.09x = 1,851,857,976.99
  5. Step 5: Solve for x
    x = 1,851,857,976.99/47,423.09
  6. Step 6: Final answer
    x = 39,049.71

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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.