Home / 47,455.82-65,478.17-28,331.88

Finding the Fourth Proportional to 47,455.82, 65,478.17 and 28,331.88

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Solution

The fourth proportional to 47,455.82, 65,478.17 and 28,331.88 is: 39,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,455.82 : 65,478.17 = 28,331.88 : x
  2. Step 2: Convert to fraction form
    47,455.82/65,478.17 = 28,331.88/x
  3. Step 3: Cross multiply
    47,455.82x = 65,478.17 × 28,331.88
  4. Step 4: Simplify right side
    47,455.82x = 1,855,119,480.35
  5. Step 5: Solve for x
    x = 1,855,119,480.35/47,455.82
  6. Step 6: Final answer
    x = 39,091.50

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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.