Home / 38,871.36-58,314.60-13,913.28

Finding the Fourth Proportional to 38,871.36, 58,314.60 and 13,913.28

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Solution

The fourth proportional to 38,871.36, 58,314.60 and 13,913.28 is: 20,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,871.36 : 58,314.60 = 13,913.28 : x
  2. Step 2: Convert to fraction form
    38,871.36/58,314.60 = 13,913.28/x
  3. Step 3: Cross multiply
    38,871.36x = 58,314.60 × 13,913.28
  4. Step 4: Simplify right side
    38,871.36x = 811,347,357.89
  5. Step 5: Solve for x
    x = 811,347,357.89/38,871.36
  6. Step 6: Final answer
    x = 20,872.63

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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.