Home / 25,155.38-34,714.43-13,977.38

Finding the Fourth Proportional to 25,155.38, 34,714.43 and 13,977.38

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Solution

The fourth proportional to 25,155.38, 34,714.43 and 13,977.38 is: 19,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.38 : 34,714.43 = 13,977.38 : x
  2. Step 2: Convert to fraction form
    25,155.38/34,714.43 = 13,977.38/x
  3. Step 3: Cross multiply
    25,155.38x = 34,714.43 × 13,977.38
  4. Step 4: Simplify right side
    25,155.38x = 485,216,536.13
  5. Step 5: Solve for x
    x = 485,216,536.13/25,155.38
  6. Step 6: Final answer
    x = 19,288.78

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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.