Home / 28,250.68-42,348.44-13,455.64

Finding the Fourth Proportional to 28,250.68, 42,348.44 and 13,455.64

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Solution

The fourth proportional to 28,250.68, 42,348.44 and 13,455.64 is: 20,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.68 : 42,348.44 = 13,455.64 : x
  2. Step 2: Convert to fraction form
    28,250.68/42,348.44 = 13,455.64/x
  3. Step 3: Cross multiply
    28,250.68x = 42,348.44 × 13,455.64
  4. Step 4: Simplify right side
    28,250.68x = 569,825,363.20
  5. Step 5: Solve for x
    x = 569,825,363.20/28,250.68
  6. Step 6: Final answer
    x = 20,170.32

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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.