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Finding the Fourth Proportional to 30,468.81, 45,710.07 and 10,747.56

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Solution

The fourth proportional to 30,468.81, 45,710.07 and 10,747.56 is: 16,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.81 : 45,710.07 = 10,747.56 : x
  2. Step 2: Convert to fraction form
    30,468.81/45,710.07 = 10,747.56/x
  3. Step 3: Cross multiply
    30,468.81x = 45,710.07 × 10,747.56
  4. Step 4: Simplify right side
    30,468.81x = 491,271,719.93
  5. Step 5: Solve for x
    x = 491,271,719.93/30,468.81
  6. Step 6: Final answer
    x = 16,123.76

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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.