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Finding the Fourth Proportional to 38,466.28, 57,699.42 and 30,724.30

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Solution

The fourth proportional to 38,466.28, 57,699.42 and 30,724.30 is: 46,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,466.28 : 57,699.42 = 30,724.30 : x
  2. Step 2: Convert to fraction form
    38,466.28/57,699.42 = 30,724.30/x
  3. Step 3: Cross multiply
    38,466.28x = 57,699.42 × 30,724.30
  4. Step 4: Simplify right side
    38,466.28x = 1,772,774,289.91
  5. Step 5: Solve for x
    x = 1,772,774,289.91/38,466.28
  6. Step 6: Final answer
    x = 46,086.45

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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.