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Finding the Fourth Proportional to 29,639.40, 44,459.10 and 28,327.20

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Solution

The fourth proportional to 29,639.40, 44,459.10 and 28,327.20 is: 42,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,639.40 : 44,459.10 = 28,327.20 : x
  2. Step 2: Convert to fraction form
    29,639.40/44,459.10 = 28,327.20/x
  3. Step 3: Cross multiply
    29,639.40x = 44,459.10 × 28,327.20
  4. Step 4: Simplify right side
    29,639.40x = 1,259,401,817.52
  5. Step 5: Solve for x
    x = 1,259,401,817.52/29,639.40
  6. Step 6: Final answer
    x = 42,490.80

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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.