Home / 20,383.10-30,564.93-8,689.94

Finding the Fourth Proportional to 20,383.10, 30,564.93 and 8,689.94

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Solution

The fourth proportional to 20,383.10, 30,564.93 and 8,689.94 is: 13,030.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.10 : 30,564.93 = 8,689.94 : x
  2. Step 2: Convert to fraction form
    20,383.10/30,564.93 = 8,689.94/x
  3. Step 3: Cross multiply
    20,383.10x = 30,564.93 × 8,689.94
  4. Step 4: Simplify right side
    20,383.10x = 265,607,407.80
  5. Step 5: Solve for x
    x = 265,607,407.80/20,383.10
  6. Step 6: Final answer
    x = 13,030.77

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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.