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Finding the Fourth Proportional to 43,504.50, 65,256.75 and 18,880.50

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Solution

The fourth proportional to 43,504.50, 65,256.75 and 18,880.50 is: 28,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,504.50 : 65,256.75 = 18,880.50 : x
  2. Step 2: Convert to fraction form
    43,504.50/65,256.75 = 18,880.50/x
  3. Step 3: Cross multiply
    43,504.50x = 65,256.75 × 18,880.50
  4. Step 4: Simplify right side
    43,504.50x = 1,232,080,068.38
  5. Step 5: Solve for x
    x = 1,232,080,068.38/43,504.50
  6. Step 6: Final answer
    x = 28,320.75

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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.