Home / 25,640.03-38,431.35-16,772.45

Finding the Fourth Proportional to 25,640.03, 38,431.35 and 16,772.45

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Solution

The fourth proportional to 25,640.03, 38,431.35 and 16,772.45 is: 25,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.03 : 38,431.35 = 16,772.45 : x
  2. Step 2: Convert to fraction form
    25,640.03/38,431.35 = 16,772.45/x
  3. Step 3: Cross multiply
    25,640.03x = 38,431.35 × 16,772.45
  4. Step 4: Simplify right side
    25,640.03x = 644,587,704.15
  5. Step 5: Solve for x
    x = 644,587,704.15/25,640.03
  6. Step 6: Final answer
    x = 25,139.89

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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.