Home / 20,314.72-28,035.68-11,363.05

Finding the Fourth Proportional to 20,314.72, 28,035.68 and 11,363.05

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Solution

The fourth proportional to 20,314.72, 28,035.68 and 11,363.05 is: 15,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.72 : 28,035.68 = 11,363.05 : x
  2. Step 2: Convert to fraction form
    20,314.72/28,035.68 = 11,363.05/x
  3. Step 3: Cross multiply
    20,314.72x = 28,035.68 × 11,363.05
  4. Step 4: Simplify right side
    20,314.72x = 318,570,833.62
  5. Step 5: Solve for x
    x = 318,570,833.62/20,314.72
  6. Step 6: Final answer
    x = 15,681.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.