Home / 28,142.92-38,835.62-15,566.92

Finding the Fourth Proportional to 28,142.92, 38,835.62 and 15,566.92

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Solution

The fourth proportional to 28,142.92, 38,835.62 and 15,566.92 is: 21,481.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.92 : 38,835.62 = 15,566.92 : x
  2. Step 2: Convert to fraction form
    28,142.92/38,835.62 = 15,566.92/x
  3. Step 3: Cross multiply
    28,142.92x = 38,835.62 × 15,566.92
  4. Step 4: Simplify right side
    28,142.92x = 604,550,989.69
  5. Step 5: Solve for x
    x = 604,550,989.69/28,142.92
  6. Step 6: Final answer
    x = 21,481.46

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Double scale
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Similar ratio
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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.