Home / 28,816.50-43,208.15-11,276.76

Finding the Fourth Proportional to 28,816.50, 43,208.15 and 11,276.76

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Solution

The fourth proportional to 28,816.50, 43,208.15 and 11,276.76 is: 16,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.50 : 43,208.15 = 11,276.76 : x
  2. Step 2: Convert to fraction form
    28,816.50/43,208.15 = 11,276.76/x
  3. Step 3: Cross multiply
    28,816.50x = 43,208.15 × 11,276.76
  4. Step 4: Simplify right side
    28,816.50x = 487,247,881.21
  5. Step 5: Solve for x
    x = 487,247,881.21/28,816.50
  6. Step 6: Final answer
    x = 16,908.64

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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.