Home / 28,712.88-43,077.96-8,993.52

Finding the Fourth Proportional to 28,712.88, 43,077.96 and 8,993.52

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Solution

The fourth proportional to 28,712.88, 43,077.96 and 8,993.52 is: 13,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.88 : 43,077.96 = 8,993.52 : x
  2. Step 2: Convert to fraction form
    28,712.88/43,077.96 = 8,993.52/x
  3. Step 3: Cross multiply
    28,712.88x = 43,077.96 × 8,993.52
  4. Step 4: Simplify right side
    28,712.88x = 387,422,494.82
  5. Step 5: Solve for x
    x = 387,422,494.82/28,712.88
  6. Step 6: Final answer
    x = 13,492.99

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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.