Home / 20,317.08-28,035.03-11,363.13

Finding the Fourth Proportional to 20,317.08, 28,035.03 and 11,363.13

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Solution

The fourth proportional to 20,317.08, 28,035.03 and 11,363.13 is: 15,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.08 : 28,035.03 = 11,363.13 : x
  2. Step 2: Convert to fraction form
    20,317.08/28,035.03 = 11,363.13/x
  3. Step 3: Cross multiply
    20,317.08x = 28,035.03 × 11,363.13
  4. Step 4: Simplify right side
    20,317.08x = 318,565,690.44
  5. Step 5: Solve for x
    x = 318,565,690.44/20,317.08
  6. Step 6: Final answer
    x = 15,679.70

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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.