Home / 38,709.90-58,088.94-20,933.18

Finding the Fourth Proportional to 38,709.90, 58,088.94 and 20,933.18

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Solution

The fourth proportional to 38,709.90, 58,088.94 and 20,933.18 is: 31,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,709.90 : 58,088.94 = 20,933.18 : x
  2. Step 2: Convert to fraction form
    38,709.90/58,088.94 = 20,933.18/x
  3. Step 3: Cross multiply
    38,709.90x = 58,088.94 × 20,933.18
  4. Step 4: Simplify right side
    38,709.90x = 1,215,986,148.11
  5. Step 5: Solve for x
    x = 1,215,986,148.11/38,709.90
  6. Step 6: Final answer
    x = 31,412.79

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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.