Home / 20,207.04-30,312.66-7,727

Finding the Fourth Proportional to 20,207.04, 30,312.66 and 7,727

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Solution

The fourth proportional to 20,207.04, 30,312.66 and 7,727 is: 11,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.04 : 30,312.66 = 7,727 : x
  2. Step 2: Convert to fraction form
    20,207.04/30,312.66 = 7,727/x
  3. Step 3: Cross multiply
    20,207.04x = 30,312.66 × 7,727
  4. Step 4: Simplify right side
    20,207.04x = 234,225,923.82
  5. Step 5: Solve for x
    x = 234,225,923.82/20,207.04
  6. Step 6: Final answer
    x = 11,591.30

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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.