Home / 20,567.01-30,850.65-7,419.90

Finding the Fourth Proportional to 20,567.01, 30,850.65 and 7,419.90

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Solution

The fourth proportional to 20,567.01, 30,850.65 and 7,419.90 is: 11,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.01 : 30,850.65 = 7,419.90 : x
  2. Step 2: Convert to fraction form
    20,567.01/30,850.65 = 7,419.90/x
  3. Step 3: Cross multiply
    20,567.01x = 30,850.65 × 7,419.90
  4. Step 4: Simplify right side
    20,567.01x = 228,908,737.94
  5. Step 5: Solve for x
    x = 228,908,737.94/20,567.01
  6. Step 6: Final answer
    x = 11,129.90

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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.