Home / 21,050.65-31,548.62-8,556.13

Finding the Fourth Proportional to 21,050.65, 31,548.62 and 8,556.13

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Solution

The fourth proportional to 21,050.65, 31,548.62 and 8,556.13 is: 12,823.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.65 : 31,548.62 = 8,556.13 : x
  2. Step 2: Convert to fraction form
    21,050.65/31,548.62 = 8,556.13/x
  3. Step 3: Cross multiply
    21,050.65x = 31,548.62 × 8,556.13
  4. Step 4: Simplify right side
    21,050.65x = 269,934,154.87
  5. Step 5: Solve for x
    x = 269,934,154.87/21,050.65
  6. Step 6: Final answer
    x = 12,823.08

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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.