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Finding the Fourth Proportional to 30,445.64, 45,605.18 and 15,609.64

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Solution

The fourth proportional to 30,445.64, 45,605.18 and 15,609.64 is: 23,382.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.64 : 45,605.18 = 15,609.64 : x
  2. Step 2: Convert to fraction form
    30,445.64/45,605.18 = 15,609.64/x
  3. Step 3: Cross multiply
    30,445.64x = 45,605.18 × 15,609.64
  4. Step 4: Simplify right side
    30,445.64x = 711,880,441.94
  5. Step 5: Solve for x
    x = 711,880,441.94/30,445.64
  6. Step 6: Final answer
    x = 23,382.02

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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.