Home / 20,260.55-30,401.53-14,375.47

Finding the Fourth Proportional to 20,260.55, 30,401.53 and 14,375.47

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Solution

The fourth proportional to 20,260.55, 30,401.53 and 14,375.47 is: 21,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.55 : 30,401.53 = 14,375.47 : x
  2. Step 2: Convert to fraction form
    20,260.55/30,401.53 = 14,375.47/x
  3. Step 3: Cross multiply
    20,260.55x = 30,401.53 × 14,375.47
  4. Step 4: Simplify right side
    20,260.55x = 437,036,170.53
  5. Step 5: Solve for x
    x = 437,036,170.53/20,260.55
  6. Step 6: Final answer
    x = 21,570.80

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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.