Home / 39,066.56-58,586.40-12,764.78

Finding the Fourth Proportional to 39,066.56, 58,586.40 and 12,764.78

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Solution

The fourth proportional to 39,066.56, 58,586.40 and 12,764.78 is: 19,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,066.56 : 58,586.40 = 12,764.78 : x
  2. Step 2: Convert to fraction form
    39,066.56/58,586.40 = 12,764.78/x
  3. Step 3: Cross multiply
    39,066.56x = 58,586.40 × 12,764.78
  4. Step 4: Simplify right side
    39,066.56x = 747,842,506.99
  5. Step 5: Solve for x
    x = 747,842,506.99/39,066.56
  6. Step 6: Final answer
    x = 19,142.78

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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.