Home / 20,996.48-31,498.08-6,957.02

Finding the Fourth Proportional to 20,996.48, 31,498.08 and 6,957.02

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Solution

The fourth proportional to 20,996.48, 31,498.08 and 6,957.02 is: 10,436.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996.48 : 31,498.08 = 6,957.02 : x
  2. Step 2: Convert to fraction form
    20,996.48/31,498.08 = 6,957.02/x
  3. Step 3: Cross multiply
    20,996.48x = 31,498.08 × 6,957.02
  4. Step 4: Simplify right side
    20,996.48x = 219,132,772.52
  5. Step 5: Solve for x
    x = 219,132,772.52/20,996.48
  6. Step 6: Final answer
    x = 10,436.64

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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.