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Finding the Fourth Proportional to 28,777.37, 43,165.99 and 9,057.65

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Solution

The fourth proportional to 28,777.37, 43,165.99 and 9,057.65 is: 13,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.37 : 43,165.99 = 9,057.65 : x
  2. Step 2: Convert to fraction form
    28,777.37/43,165.99 = 9,057.65/x
  3. Step 3: Cross multiply
    28,777.37x = 43,165.99 × 9,057.65
  4. Step 4: Simplify right side
    28,777.37x = 390,982,429.32
  5. Step 5: Solve for x
    x = 390,982,429.32/28,777.37
  6. Step 6: Final answer
    x = 13,586.45

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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.