Home / 20,607.32-28,437.96-11,175.88

Finding the Fourth Proportional to 20,607.32, 28,437.96 and 11,175.88

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Solution

The fourth proportional to 20,607.32, 28,437.96 and 11,175.88 is: 15,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.32 : 28,437.96 = 11,175.88 : x
  2. Step 2: Convert to fraction form
    20,607.32/28,437.96 = 11,175.88/x
  3. Step 3: Cross multiply
    20,607.32x = 28,437.96 × 11,175.88
  4. Step 4: Simplify right side
    20,607.32x = 317,819,228.40
  5. Step 5: Solve for x
    x = 317,819,228.40/20,607.32
  6. Step 6: Final answer
    x = 15,422.64

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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.