Home / 20,666.54-30,988.47-9,567.11

Finding the Fourth Proportional to 20,666.54, 30,988.47 and 9,567.11

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Solution

The fourth proportional to 20,666.54, 30,988.47 and 9,567.11 is: 14,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.54 : 30,988.47 = 9,567.11 : x
  2. Step 2: Convert to fraction form
    20,666.54/30,988.47 = 9,567.11/x
  3. Step 3: Cross multiply
    20,666.54x = 30,988.47 × 9,567.11
  4. Step 4: Simplify right side
    20,666.54x = 296,470,214.57
  5. Step 5: Solve for x
    x = 296,470,214.57/20,666.54
  6. Step 6: Final answer
    x = 14,345.42

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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.