Home / 20,252.53-30,378.80-6,401.53

Finding the Fourth Proportional to 20,252.53, 30,378.80 and 6,401.53

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Solution

The fourth proportional to 20,252.53, 30,378.80 and 6,401.53 is: 9,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.53 : 30,378.80 = 6,401.53 : x
  2. Step 2: Convert to fraction form
    20,252.53/30,378.80 = 6,401.53/x
  3. Step 3: Cross multiply
    20,252.53x = 30,378.80 × 6,401.53
  4. Step 4: Simplify right side
    20,252.53x = 194,470,817.53
  5. Step 5: Solve for x
    x = 194,470,817.53/20,252.53
  6. Step 6: Final answer
    x = 9,602.30

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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.