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Finding the Fourth Proportional to 43,673.31, 65,509.97 and 28,976.13

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Solution

The fourth proportional to 43,673.31, 65,509.97 and 28,976.13 is: 43,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,673.31 : 65,509.97 = 28,976.13 : x
  2. Step 2: Convert to fraction form
    43,673.31/65,509.97 = 28,976.13/x
  3. Step 3: Cross multiply
    43,673.31x = 65,509.97 × 28,976.13
  4. Step 4: Simplify right side
    43,673.31x = 1,898,225,262.14
  5. Step 5: Solve for x
    x = 1,898,225,262.14/43,673.31
  6. Step 6: Final answer
    x = 43,464.20

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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.