Home / 26,606.20-39,966.90-18,830.20

Finding the Fourth Proportional to 26,606.20, 39,966.90 and 18,830.20

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Solution

The fourth proportional to 26,606.20, 39,966.90 and 18,830.20 is: 28,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,606.20 : 39,966.90 = 18,830.20 : x
  2. Step 2: Convert to fraction form
    26,606.20/39,966.90 = 18,830.20/x
  3. Step 3: Cross multiply
    26,606.20x = 39,966.90 × 18,830.20
  4. Step 4: Simplify right side
    26,606.20x = 752,584,720.38
  5. Step 5: Solve for x
    x = 752,584,720.38/26,606.20
  6. Step 6: Final answer
    x = 28,286.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.