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Finding the Fourth Proportional to 30,433.60, 45,655.31 and 9,373.64

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Solution

The fourth proportional to 30,433.60, 45,655.31 and 9,373.64 is: 14,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,433.60 : 45,655.31 = 9,373.64 : x
  2. Step 2: Convert to fraction form
    30,433.60/45,655.31 = 9,373.64/x
  3. Step 3: Cross multiply
    30,433.60x = 45,655.31 × 9,373.64
  4. Step 4: Simplify right side
    30,433.60x = 427,956,164.88
  5. Step 5: Solve for x
    x = 427,956,164.88/30,433.60
  6. Step 6: Final answer
    x = 14,061.96

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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.