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Finding the Fourth Proportional to 30,474.60, 45,712.02 and 10,742.44

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Solution

The fourth proportional to 30,474.60, 45,712.02 and 10,742.44 is: 16,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.60 : 45,712.02 = 10,742.44 : x
  2. Step 2: Convert to fraction form
    30,474.60/45,712.02 = 10,742.44/x
  3. Step 3: Cross multiply
    30,474.60x = 45,712.02 × 10,742.44
  4. Step 4: Simplify right side
    30,474.60x = 491,058,632.13
  5. Step 5: Solve for x
    x = 491,058,632.13/30,474.60
  6. Step 6: Final answer
    x = 16,113.70

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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.