Home / 38,690.60-58,089.69-19,984.46

Finding the Fourth Proportional to 38,690.60, 58,089.69 and 19,984.46

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Solution

The fourth proportional to 38,690.60, 58,089.69 and 19,984.46 is: 30,004.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,690.60 : 58,089.69 = 19,984.46 : x
  2. Step 2: Convert to fraction form
    38,690.60/58,089.69 = 19,984.46/x
  3. Step 3: Cross multiply
    38,690.60x = 58,089.69 × 19,984.46
  4. Step 4: Simplify right side
    38,690.60x = 1,160,890,795.77
  5. Step 5: Solve for x
    x = 1,160,890,795.77/38,690.60
  6. Step 6: Final answer
    x = 30,004.47

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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.