Home / 28,754.88-43,117.20-16,912.28

Finding the Fourth Proportional to 28,754.88, 43,117.20 and 16,912.28

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Solution

The fourth proportional to 28,754.88, 43,117.20 and 16,912.28 is: 25,359.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.88 : 43,117.20 = 16,912.28 : x
  2. Step 2: Convert to fraction form
    28,754.88/43,117.20 = 16,912.28/x
  3. Step 3: Cross multiply
    28,754.88x = 43,117.20 × 16,912.28
  4. Step 4: Simplify right side
    28,754.88x = 729,210,159.22
  5. Step 5: Solve for x
    x = 729,210,159.22/28,754.88
  6. Step 6: Final answer
    x = 25,359.53

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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.