Home / 47,400.72-65,383.32-28,267.08

Finding the Fourth Proportional to 47,400.72, 65,383.32 and 28,267.08

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Solution

The fourth proportional to 47,400.72, 65,383.32 and 28,267.08 is: 38,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,400.72 : 65,383.32 = 28,267.08 : x
  2. Step 2: Convert to fraction form
    47,400.72/65,383.32 = 28,267.08/x
  3. Step 3: Cross multiply
    47,400.72x = 65,383.32 × 28,267.08
  4. Step 4: Simplify right side
    47,400.72x = 1,848,195,537.11
  5. Step 5: Solve for x
    x = 1,848,195,537.11/47,400.72
  6. Step 6: Final answer
    x = 38,990.87

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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.