Home / 20,657.58-28,507.45-11,226.14

Finding the Fourth Proportional to 20,657.58, 28,507.45 and 11,226.14

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Solution

The fourth proportional to 20,657.58, 28,507.45 and 11,226.14 is: 15,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.58 : 28,507.45 = 11,226.14 : x
  2. Step 2: Convert to fraction form
    20,657.58/28,507.45 = 11,226.14/x
  3. Step 3: Cross multiply
    20,657.58x = 28,507.45 × 11,226.14
  4. Step 4: Simplify right side
    20,657.58x = 320,028,482.21
  5. Step 5: Solve for x
    x = 320,028,482.21/20,657.58
  6. Step 6: Final answer
    x = 15,492.06

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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.