Home / 20,784.96-28,661.34-19,099.62

Finding the Fourth Proportional to 20,784.96, 28,661.34 and 19,099.62

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Solution

The fourth proportional to 20,784.96, 28,661.34 and 19,099.62 is: 26,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.96 : 28,661.34 = 19,099.62 : x
  2. Step 2: Convert to fraction form
    20,784.96/28,661.34 = 19,099.62/x
  3. Step 3: Cross multiply
    20,784.96x = 28,661.34 × 19,099.62
  4. Step 4: Simplify right side
    20,784.96x = 547,420,702.69
  5. Step 5: Solve for x
    x = 547,420,702.69/20,784.96
  6. Step 6: Final answer
    x = 26,337.35

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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.