Home / 20,917.02-31,375.80-7,066.02

Finding the Fourth Proportional to 20,917.02, 31,375.80 and 7,066.02

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Solution

The fourth proportional to 20,917.02, 31,375.80 and 7,066.02 is: 10,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,917.02 : 31,375.80 = 7,066.02 : x
  2. Step 2: Convert to fraction form
    20,917.02/31,375.80 = 7,066.02/x
  3. Step 3: Cross multiply
    20,917.02x = 31,375.80 × 7,066.02
  4. Step 4: Simplify right side
    20,917.02x = 221,702,030.32
  5. Step 5: Solve for x
    x = 221,702,030.32/20,917.02
  6. Step 6: Final answer
    x = 10,599.12

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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.