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Finding the Fourth Proportional to 38,484.48, 57,728.96 and 10,784.64

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Solution

The fourth proportional to 38,484.48, 57,728.96 and 10,784.64 is: 16,177.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,484.48 : 57,728.96 = 10,784.64 : x
  2. Step 2: Convert to fraction form
    38,484.48/57,728.96 = 10,784.64/x
  3. Step 3: Cross multiply
    38,484.48x = 57,728.96 × 10,784.64
  4. Step 4: Simplify right side
    38,484.48x = 622,586,051.17
  5. Step 5: Solve for x
    x = 622,586,051.17/38,484.48
  6. Step 6: Final answer
    x = 16,177.59

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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.