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Finding the Fourth Proportional to 20,462.60, 30,710.64 and 10,604.84

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Solution

The fourth proportional to 20,462.60, 30,710.64 and 10,604.84 is: 15,915.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.60 : 30,710.64 = 10,604.84 : x
  2. Step 2: Convert to fraction form
    20,462.60/30,710.64 = 10,604.84/x
  3. Step 3: Cross multiply
    20,462.60x = 30,710.64 × 10,604.84
  4. Step 4: Simplify right side
    20,462.60x = 325,681,423.50
  5. Step 5: Solve for x
    x = 325,681,423.50/20,462.60
  6. Step 6: Final answer
    x = 15,915.94

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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.