Home / 20,658.14-28,502.14-11,705.46

Finding the Fourth Proportional to 20,658.14, 28,502.14 and 11,705.46

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Solution

The fourth proportional to 20,658.14, 28,502.14 and 11,705.46 is: 16,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.14 : 28,502.14 = 11,705.46 : x
  2. Step 2: Convert to fraction form
    20,658.14/28,502.14 = 11,705.46/x
  3. Step 3: Cross multiply
    20,658.14x = 28,502.14 × 11,705.46
  4. Step 4: Simplify right side
    20,658.14x = 333,630,659.68
  5. Step 5: Solve for x
    x = 333,630,659.68/20,658.14
  6. Step 6: Final answer
    x = 16,150.08

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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.