Home / 20,382.28-30,564.36-7,056.52

Finding the Fourth Proportional to 20,382.28, 30,564.36 and 7,056.52

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Solution

The fourth proportional to 20,382.28, 30,564.36 and 7,056.52 is: 10,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382.28 : 30,564.36 = 7,056.52 : x
  2. Step 2: Convert to fraction form
    20,382.28/30,564.36 = 7,056.52/x
  3. Step 3: Cross multiply
    20,382.28x = 30,564.36 × 7,056.52
  4. Step 4: Simplify right side
    20,382.28x = 215,678,017.63
  5. Step 5: Solve for x
    x = 215,678,017.63/20,382.28
  6. Step 6: Final answer
    x = 10,581.64

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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.