Home / 25,951.36-38,913.20-13,440.35

Finding the Fourth Proportional to 25,951.36, 38,913.20 and 13,440.35

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Solution

The fourth proportional to 25,951.36, 38,913.20 and 13,440.35 is: 20,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,951.36 : 38,913.20 = 13,440.35 : x
  2. Step 2: Convert to fraction form
    25,951.36/38,913.20 = 13,440.35/x
  3. Step 3: Cross multiply
    25,951.36x = 38,913.20 × 13,440.35
  4. Step 4: Simplify right side
    25,951.36x = 523,006,765.85
  5. Step 5: Solve for x
    x = 523,006,765.85/25,951.36
  6. Step 6: Final answer
    x = 20,153.35

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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.