Home / 20,668.52-31,001.69-5,875.49

Finding the Fourth Proportional to 20,668.52, 31,001.69 and 5,875.49

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Solution

The fourth proportional to 20,668.52, 31,001.69 and 5,875.49 is: 8,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.52 : 31,001.69 = 5,875.49 : x
  2. Step 2: Convert to fraction form
    20,668.52/31,001.69 = 5,875.49/x
  3. Step 3: Cross multiply
    20,668.52x = 31,001.69 × 5,875.49
  4. Step 4: Simplify right side
    20,668.52x = 182,149,935.19
  5. Step 5: Solve for x
    x = 182,149,935.19/20,668.52
  6. Step 6: Final answer
    x = 8,812.92

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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.