Home / 20,730.42-31,094.73-6,691.14

Finding the Fourth Proportional to 20,730.42, 31,094.73 and 6,691.14

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Solution

The fourth proportional to 20,730.42, 31,094.73 and 6,691.14 is: 10,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.42 : 31,094.73 = 6,691.14 : x
  2. Step 2: Convert to fraction form
    20,730.42/31,094.73 = 6,691.14/x
  3. Step 3: Cross multiply
    20,730.42x = 31,094.73 × 6,691.14
  4. Step 4: Simplify right side
    20,730.42x = 208,059,191.69
  5. Step 5: Solve for x
    x = 208,059,191.69/20,730.42
  6. Step 6: Final answer
    x = 10,036.42

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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.