Home / 25,190.70-37,742.28-17,678.35

Finding the Fourth Proportional to 25,190.70, 37,742.28 and 17,678.35

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Solution

The fourth proportional to 25,190.70, 37,742.28 and 17,678.35 is: 26,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,190.70 : 37,742.28 = 17,678.35 : x
  2. Step 2: Convert to fraction form
    25,190.70/37,742.28 = 17,678.35/x
  3. Step 3: Cross multiply
    25,190.70x = 37,742.28 × 17,678.35
  4. Step 4: Simplify right side
    25,190.70x = 667,221,235.64
  5. Step 5: Solve for x
    x = 667,221,235.64/25,190.70
  6. Step 6: Final answer
    x = 26,486.81

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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.