Home / 21,852.08-32,782.16-10,766.40

Finding the Fourth Proportional to 21,852.08, 32,782.16 and 10,766.40

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Solution

The fourth proportional to 21,852.08, 32,782.16 and 10,766.40 is: 16,151.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,852.08 : 32,782.16 = 10,766.40 : x
  2. Step 2: Convert to fraction form
    21,852.08/32,782.16 = 10,766.40/x
  3. Step 3: Cross multiply
    21,852.08x = 32,782.16 × 10,766.40
  4. Step 4: Simplify right side
    21,852.08x = 352,945,847.42
  5. Step 5: Solve for x
    x = 352,945,847.42/21,852.08
  6. Step 6: Final answer
    x = 16,151.59

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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.