Home / 20,391.35-30,592.18-6,351.72

Finding the Fourth Proportional to 20,391.35, 30,592.18 and 6,351.72

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Solution

The fourth proportional to 20,391.35, 30,592.18 and 6,351.72 is: 9,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.35 : 30,592.18 = 6,351.72 : x
  2. Step 2: Convert to fraction form
    20,391.35/30,592.18 = 6,351.72/x
  3. Step 3: Cross multiply
    20,391.35x = 30,592.18 × 6,351.72
  4. Step 4: Simplify right side
    20,391.35x = 194,312,854.77
  5. Step 5: Solve for x
    x = 194,312,854.77/20,391.35
  6. Step 6: Final answer
    x = 9,529.18

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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.