Home / 20,697.76-31,048.64-6,654.24

Finding the Fourth Proportional to 20,697.76, 31,048.64 and 6,654.24

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Solution

The fourth proportional to 20,697.76, 31,048.64 and 6,654.24 is: 9,982.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.76 : 31,048.64 = 6,654.24 : x
  2. Step 2: Convert to fraction form
    20,697.76/31,048.64 = 6,654.24/x
  3. Step 3: Cross multiply
    20,697.76x = 31,048.64 × 6,654.24
  4. Step 4: Simplify right side
    20,697.76x = 206,605,102.23
  5. Step 5: Solve for x
    x = 206,605,102.23/20,697.76
  6. Step 6: Final answer
    x = 9,982.00

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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.