Home / 21,848.80-32,780.14-9,205.24

Finding the Fourth Proportional to 21,848.80, 32,780.14 and 9,205.24

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Solution

The fourth proportional to 21,848.80, 32,780.14 and 9,205.24 is: 13,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.80 : 32,780.14 = 9,205.24 : x
  2. Step 2: Convert to fraction form
    21,848.80/32,780.14 = 9,205.24/x
  3. Step 3: Cross multiply
    21,848.80x = 32,780.14 × 9,205.24
  4. Step 4: Simplify right side
    21,848.80x = 301,749,055.93
  5. Step 5: Solve for x
    x = 301,749,055.93/21,848.80
  6. Step 6: Final answer
    x = 13,810.78

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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.