Home / 18,775.13-25,771.61-16,603.04

Finding the Fourth Proportional to 18,775.13, 25,771.61 and 16,603.04

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Solution

The fourth proportional to 18,775.13, 25,771.61 and 16,603.04 is: 22,790.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.13 : 25,771.61 = 16,603.04 : x
  2. Step 2: Convert to fraction form
    18,775.13/25,771.61 = 16,603.04/x
  3. Step 3: Cross multiply
    18,775.13x = 25,771.61 × 16,603.04
  4. Step 4: Simplify right side
    18,775.13x = 427,887,177.63
  5. Step 5: Solve for x
    x = 427,887,177.63/18,775.13
  6. Step 6: Final answer
    x = 22,790.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.