Home / 25,431.85-38,139.98-17,584.79

Finding the Fourth Proportional to 25,431.85, 38,139.98 and 17,584.79

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Solution

The fourth proportional to 25,431.85, 38,139.98 and 17,584.79 is: 26,371.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.85 : 38,139.98 = 17,584.79 : x
  2. Step 2: Convert to fraction form
    25,431.85/38,139.98 = 17,584.79/x
  3. Step 3: Cross multiply
    25,431.85x = 38,139.98 × 17,584.79
  4. Step 4: Simplify right side
    25,431.85x = 670,683,678.22
  5. Step 5: Solve for x
    x = 670,683,678.22/25,431.85
  6. Step 6: Final answer
    x = 26,371.80

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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.