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Finding the Fourth Proportional to 30,520.95, 45,811.01 and 14,737.12

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Solution

The fourth proportional to 30,520.95, 45,811.01 and 14,737.12 is: 22,119.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520.95 : 45,811.01 = 14,737.12 : x
  2. Step 2: Convert to fraction form
    30,520.95/45,811.01 = 14,737.12/x
  3. Step 3: Cross multiply
    30,520.95x = 45,811.01 × 14,737.12
  4. Step 4: Simplify right side
    30,520.95x = 675,122,274.01
  5. Step 5: Solve for x
    x = 675,122,274.01/30,520.95
  6. Step 6: Final answer
    x = 22,119.96

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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.