Home / 20,603.85-28,435.07-11,652.94

Finding the Fourth Proportional to 20,603.85, 28,435.07 and 11,652.94

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Solution

The fourth proportional to 20,603.85, 28,435.07 and 11,652.94 is: 16,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,603.85 : 28,435.07 = 11,652.94 : x
  2. Step 2: Convert to fraction form
    20,603.85/28,435.07 = 11,652.94/x
  3. Step 3: Cross multiply
    20,603.85x = 28,435.07 × 11,652.94
  4. Step 4: Simplify right side
    20,603.85x = 331,352,164.61
  5. Step 5: Solve for x
    x = 331,352,164.61/20,603.85
  6. Step 6: Final answer
    x = 16,082.05

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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.