Home / 20,681.25-30,997.17-7,526.46

Finding the Fourth Proportional to 20,681.25, 30,997.17 and 7,526.46

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Solution

The fourth proportional to 20,681.25, 30,997.17 and 7,526.46 is: 11,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.25 : 30,997.17 = 7,526.46 : x
  2. Step 2: Convert to fraction form
    20,681.25/30,997.17 = 7,526.46/x
  3. Step 3: Cross multiply
    20,681.25x = 30,997.17 × 7,526.46
  4. Step 4: Simplify right side
    20,681.25x = 233,298,960.12
  5. Step 5: Solve for x
    x = 233,298,960.12/20,681.25
  6. Step 6: Final answer
    x = 11,280.70

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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.