Home / 20,739.17-31,113.16-6,700

Finding the Fourth Proportional to 20,739.17, 31,113.16 and 6,700

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Solution

The fourth proportional to 20,739.17, 31,113.16 and 6,700 is: 10,051.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.17 : 31,113.16 = 6,700 : x
  2. Step 2: Convert to fraction form
    20,739.17/31,113.16 = 6,700/x
  3. Step 3: Cross multiply
    20,739.17x = 31,113.16 × 6,700
  4. Step 4: Simplify right side
    20,739.17x = 208,458,172
  5. Step 5: Solve for x
    x = 208,458,172/20,739.17
  6. Step 6: Final answer
    x = 10,051.42

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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.