Home / 39,165.18-58,749.66-12,869.34

Finding the Fourth Proportional to 39,165.18, 58,749.66 and 12,869.34

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Solution

The fourth proportional to 39,165.18, 58,749.66 and 12,869.34 is: 19,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165.18 : 58,749.66 = 12,869.34 : x
  2. Step 2: Convert to fraction form
    39,165.18/58,749.66 = 12,869.34/x
  3. Step 3: Cross multiply
    39,165.18x = 58,749.66 × 12,869.34
  4. Step 4: Simplify right side
    39,165.18x = 756,069,349.42
  5. Step 5: Solve for x
    x = 756,069,349.42/39,165.18
  6. Step 6: Final answer
    x = 19,304.63

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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.