Home / 38,869.86-58,309.54-13,912.54

Finding the Fourth Proportional to 38,869.86, 58,309.54 and 13,912.54

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Solution

The fourth proportional to 38,869.86, 58,309.54 and 13,912.54 is: 20,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869.86 : 58,309.54 = 13,912.54 : x
  2. Step 2: Convert to fraction form
    38,869.86/58,309.54 = 13,912.54/x
  3. Step 3: Cross multiply
    38,869.86x = 58,309.54 × 13,912.54
  4. Step 4: Simplify right side
    38,869.86x = 811,233,807.63
  5. Step 5: Solve for x
    x = 811,233,807.63/38,869.86
  6. Step 6: Final answer
    x = 20,870.51

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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.