Home / 28,703.20-43,054.80-8,981.84

Finding the Fourth Proportional to 28,703.20, 43,054.80 and 8,981.84

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Solution

The fourth proportional to 28,703.20, 43,054.80 and 8,981.84 is: 13,472.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.20 : 43,054.80 = 8,981.84 : x
  2. Step 2: Convert to fraction form
    28,703.20/43,054.80 = 8,981.84/x
  3. Step 3: Cross multiply
    28,703.20x = 43,054.80 × 8,981.84
  4. Step 4: Simplify right side
    28,703.20x = 386,711,324.83
  5. Step 5: Solve for x
    x = 386,711,324.83/28,703.20
  6. Step 6: Final answer
    x = 13,472.76

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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.