Home / 28,521.48-42,786.45-9,806.34

Finding the Fourth Proportional to 28,521.48, 42,786.45 and 9,806.34

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Solution

The fourth proportional to 28,521.48, 42,786.45 and 9,806.34 is: 14,710.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.48 : 42,786.45 = 9,806.34 : x
  2. Step 2: Convert to fraction form
    28,521.48/42,786.45 = 9,806.34/x
  3. Step 3: Cross multiply
    28,521.48x = 42,786.45 × 9,806.34
  4. Step 4: Simplify right side
    28,521.48x = 419,578,476.09
  5. Step 5: Solve for x
    x = 419,578,476.09/28,521.48
  6. Step 6: Final answer
    x = 14,710.96

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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.