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Finding the Fourth Proportional to 30,014.79, 44,990.90 and 11,281.92

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Solution

The fourth proportional to 30,014.79, 44,990.90 and 11,281.92 is: 16,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,014.79 : 44,990.90 = 11,281.92 : x
  2. Step 2: Convert to fraction form
    30,014.79/44,990.90 = 11,281.92/x
  3. Step 3: Cross multiply
    30,014.79x = 44,990.90 × 11,281.92
  4. Step 4: Simplify right side
    30,014.79x = 507,583,678.12
  5. Step 5: Solve for x
    x = 507,583,678.12/30,014.79
  6. Step 6: Final answer
    x = 16,911.12

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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.