Home / 28,502.08-42,749.92-7,727.20

Finding the Fourth Proportional to 28,502.08, 42,749.92 and 7,727.20

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Solution

The fourth proportional to 28,502.08, 42,749.92 and 7,727.20 is: 11,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.08 : 42,749.92 = 7,727.20 : x
  2. Step 2: Convert to fraction form
    28,502.08/42,749.92 = 7,727.20/x
  3. Step 3: Cross multiply
    28,502.08x = 42,749.92 × 7,727.20
  4. Step 4: Simplify right side
    28,502.08x = 330,337,181.82
  5. Step 5: Solve for x
    x = 330,337,181.82/28,502.08
  6. Step 6: Final answer
    x = 11,589.93

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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.