Home / 20,693.52-31,042.08-9,007.92

Finding the Fourth Proportional to 20,693.52, 31,042.08 and 9,007.92

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Solution

The fourth proportional to 20,693.52, 31,042.08 and 9,007.92 is: 13,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.52 : 31,042.08 = 9,007.92 : x
  2. Step 2: Convert to fraction form
    20,693.52/31,042.08 = 9,007.92/x
  3. Step 3: Cross multiply
    20,693.52x = 31,042.08 × 9,007.92
  4. Step 4: Simplify right side
    20,693.52x = 279,624,573.27
  5. Step 5: Solve for x
    x = 279,624,573.27/20,693.52
  6. Step 6: Final answer
    x = 13,512.66

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1.5x scale

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.