Home / 39,508.08-54,522.12-21,603.84

Finding the Fourth Proportional to 39,508.08, 54,522.12 and 21,603.84

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Solution

The fourth proportional to 39,508.08, 54,522.12 and 21,603.84 is: 29,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,508.08 : 54,522.12 = 21,603.84 : x
  2. Step 2: Convert to fraction form
    39,508.08/54,522.12 = 21,603.84/x
  3. Step 3: Cross multiply
    39,508.08x = 54,522.12 × 21,603.84
  4. Step 4: Simplify right side
    39,508.08x = 1,177,887,156.94
  5. Step 5: Solve for x
    x = 1,177,887,156.94/39,508.08
  6. Step 6: Final answer
    x = 29,813.83

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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.