Home / 20,352.99-28,084.64-11,856.50

Finding the Fourth Proportional to 20,352.99, 28,084.64 and 11,856.50

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Solution

The fourth proportional to 20,352.99, 28,084.64 and 11,856.50 is: 16,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.99 : 28,084.64 = 11,856.50 : x
  2. Step 2: Convert to fraction form
    20,352.99/28,084.64 = 11,856.50/x
  3. Step 3: Cross multiply
    20,352.99x = 28,084.64 × 11,856.50
  4. Step 4: Simplify right side
    20,352.99x = 332,985,534.16
  5. Step 5: Solve for x
    x = 332,985,534.16/20,352.99
  6. Step 6: Final answer
    x = 16,360.52

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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.