Home / 21,918.02-32,871.90-8,766.86

Finding the Fourth Proportional to 21,918.02, 32,871.90 and 8,766.86

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Solution

The fourth proportional to 21,918.02, 32,871.90 and 8,766.86 is: 13,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.02 : 32,871.90 = 8,766.86 : x
  2. Step 2: Convert to fraction form
    21,918.02/32,871.90 = 8,766.86/x
  3. Step 3: Cross multiply
    21,918.02x = 32,871.90 × 8,766.86
  4. Step 4: Simplify right side
    21,918.02x = 288,183,345.23
  5. Step 5: Solve for x
    x = 288,183,345.23/21,918.02
  6. Step 6: Final answer
    x = 13,148.24

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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.