Home / 28,336.53-42,467.59-11,687.39

Finding the Fourth Proportional to 28,336.53, 42,467.59 and 11,687.39

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Solution

The fourth proportional to 28,336.53, 42,467.59 and 11,687.39 is: 17,515.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.53 : 42,467.59 = 11,687.39 : x
  2. Step 2: Convert to fraction form
    28,336.53/42,467.59 = 11,687.39/x
  3. Step 3: Cross multiply
    28,336.53x = 42,467.59 × 11,687.39
  4. Step 4: Simplify right side
    28,336.53x = 496,335,248.21
  5. Step 5: Solve for x
    x = 496,335,248.21/28,336.53
  6. Step 6: Final answer
    x = 17,515.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.