Home / 47,595.12-65,682.96-28,728.56

Finding the Fourth Proportional to 47,595.12, 65,682.96 and 28,728.56

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Solution

The fourth proportional to 47,595.12, 65,682.96 and 28,728.56 is: 39,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,595.12 : 65,682.96 = 28,728.56 : x
  2. Step 2: Convert to fraction form
    47,595.12/65,682.96 = 28,728.56/x
  3. Step 3: Cross multiply
    47,595.12x = 65,682.96 × 28,728.56
  4. Step 4: Simplify right side
    47,595.12x = 1,886,976,857.34
  5. Step 5: Solve for x
    x = 1,886,976,857.34/47,595.12
  6. Step 6: Final answer
    x = 39,646.44

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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.