Home / 20,360.37-28,098.86-12,813.17

Finding the Fourth Proportional to 20,360.37, 28,098.86 and 12,813.17

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Solution

The fourth proportional to 20,360.37, 28,098.86 and 12,813.17 is: 17,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.37 : 28,098.86 = 12,813.17 : x
  2. Step 2: Convert to fraction form
    20,360.37/28,098.86 = 12,813.17/x
  3. Step 3: Cross multiply
    20,360.37x = 28,098.86 × 12,813.17
  4. Step 4: Simplify right side
    20,360.37x = 360,035,469.99
  5. Step 5: Solve for x
    x = 360,035,469.99/20,360.37
  6. Step 6: Final answer
    x = 17,683.15

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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.