Home / 38,690.67-58,089.47-19,986.15

Finding the Fourth Proportional to 38,690.67, 58,089.47 and 19,986.15

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Solution

The fourth proportional to 38,690.67, 58,089.47 and 19,986.15 is: 30,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,690.67 : 58,089.47 = 19,986.15 : x
  2. Step 2: Convert to fraction form
    38,690.67/58,089.47 = 19,986.15/x
  3. Step 3: Cross multiply
    38,690.67x = 58,089.47 × 19,986.15
  4. Step 4: Simplify right side
    38,690.67x = 1,160,984,860.84
  5. Step 5: Solve for x
    x = 1,160,984,860.84/38,690.67
  6. Step 6: Final answer
    x = 30,006.84

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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.