Home / 17,890.08-26,801.28-17,139.36

Finding the Fourth Proportional to 17,890.08, 26,801.28 and 17,139.36

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Solution

The fourth proportional to 17,890.08, 26,801.28 and 17,139.36 is: 25,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.08 : 26,801.28 = 17,139.36 : x
  2. Step 2: Convert to fraction form
    17,890.08/26,801.28 = 17,139.36/x
  3. Step 3: Cross multiply
    17,890.08x = 26,801.28 × 17,139.36
  4. Step 4: Simplify right side
    17,890.08x = 459,356,786.38
  5. Step 5: Solve for x
    x = 459,356,786.38/17,890.08
  6. Step 6: Final answer
    x = 25,676.62

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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.