Home / 20,476.07-30,708.38-5,681.46

Finding the Fourth Proportional to 20,476.07, 30,708.38 and 5,681.46

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Solution

The fourth proportional to 20,476.07, 30,708.38 and 5,681.46 is: 8,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,476.07 : 30,708.38 = 5,681.46 : x
  2. Step 2: Convert to fraction form
    20,476.07/30,708.38 = 5,681.46/x
  3. Step 3: Cross multiply
    20,476.07x = 30,708.38 × 5,681.46
  4. Step 4: Simplify right side
    20,476.07x = 174,468,446.84
  5. Step 5: Solve for x
    x = 174,468,446.84/20,476.07
  6. Step 6: Final answer
    x = 8,520.60

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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.