Home / 21,890.88-32,852.34-8,747.10

Finding the Fourth Proportional to 21,890.88, 32,852.34 and 8,747.10

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Solution

The fourth proportional to 21,890.88, 32,852.34 and 8,747.10 is: 13,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.88 : 32,852.34 = 8,747.10 : x
  2. Step 2: Convert to fraction form
    21,890.88/32,852.34 = 8,747.10/x
  3. Step 3: Cross multiply
    21,890.88x = 32,852.34 × 8,747.10
  4. Step 4: Simplify right side
    21,890.88x = 287,362,703.21
  5. Step 5: Solve for x
    x = 287,362,703.21/21,890.88
  6. Step 6: Final answer
    x = 13,127.05

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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.