Home / 20,572.92-28,394.73-11,620.53

Finding the Fourth Proportional to 20,572.92, 28,394.73 and 11,620.53

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Solution

The fourth proportional to 20,572.92, 28,394.73 and 11,620.53 is: 16,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.92 : 28,394.73 = 11,620.53 : x
  2. Step 2: Convert to fraction form
    20,572.92/28,394.73 = 11,620.53/x
  3. Step 3: Cross multiply
    20,572.92x = 28,394.73 × 11,620.53
  4. Step 4: Simplify right side
    20,572.92x = 329,961,811.81
  5. Step 5: Solve for x
    x = 329,961,811.81/20,572.92
  6. Step 6: Final answer
    x = 16,038.65

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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.