Home / 20,416.56-28,176.48-11,464.66

Finding the Fourth Proportional to 20,416.56, 28,176.48 and 11,464.66

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Solution

The fourth proportional to 20,416.56, 28,176.48 and 11,464.66 is: 15,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.56 : 28,176.48 = 11,464.66 : x
  2. Step 2: Convert to fraction form
    20,416.56/28,176.48 = 11,464.66/x
  3. Step 3: Cross multiply
    20,416.56x = 28,176.48 × 11,464.66
  4. Step 4: Simplify right side
    20,416.56x = 323,033,763.20
  5. Step 5: Solve for x
    x = 323,033,763.20/20,416.56
  6. Step 6: Final answer
    x = 15,822.14

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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.