Home / 28,284.58-42,436.08-13,491.57

Finding the Fourth Proportional to 28,284.58, 42,436.08 and 13,491.57

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Solution

The fourth proportional to 28,284.58, 42,436.08 and 13,491.57 is: 20,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.58 : 42,436.08 = 13,491.57 : x
  2. Step 2: Convert to fraction form
    28,284.58/42,436.08 = 13,491.57/x
  3. Step 3: Cross multiply
    28,284.58x = 42,436.08 × 13,491.57
  4. Step 4: Simplify right side
    28,284.58x = 572,529,343.85
  5. Step 5: Solve for x
    x = 572,529,343.85/28,284.58
  6. Step 6: Final answer
    x = 20,241.75

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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.