Home / 21,820.14-32,728.38-8,668.98

Finding the Fourth Proportional to 21,820.14, 32,728.38 and 8,668.98

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Solution

The fourth proportional to 21,820.14, 32,728.38 and 8,668.98 is: 13,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,820.14 : 32,728.38 = 8,668.98 : x
  2. Step 2: Convert to fraction form
    21,820.14/32,728.38 = 8,668.98/x
  3. Step 3: Cross multiply
    21,820.14x = 32,728.38 × 8,668.98
  4. Step 4: Simplify right side
    21,820.14x = 283,721,671.65
  5. Step 5: Solve for x
    x = 283,721,671.65/21,820.14
  6. Step 6: Final answer
    x = 13,002.74

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1.5x scale

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.