Home / 19,330.40-28,988.04-6,845.60

Finding the Fourth Proportional to 19,330.40, 28,988.04 and 6,845.60

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Solution

The fourth proportional to 19,330.40, 28,988.04 and 6,845.60 is: 10,265.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.40 : 28,988.04 = 6,845.60 : x
  2. Step 2: Convert to fraction form
    19,330.40/28,988.04 = 6,845.60/x
  3. Step 3: Cross multiply
    19,330.40x = 28,988.04 × 6,845.60
  4. Step 4: Simplify right side
    19,330.40x = 198,440,526.62
  5. Step 5: Solve for x
    x = 198,440,526.62/19,330.40
  6. Step 6: Final answer
    x = 10,265.72

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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.